UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM N-CSR CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES Investment Company Act file number 811-5527 DREYFUS NEW JERSEY MUNICIPAL MONEY MARKET FUND, INC. (Exact name of Registrant as specified in charter) c/o The Dreyfus Corporation 200 Park Avenue New York, New York 10166 (Address of principal executive offices) (Zip code) Mark N. Jacobs, Esq. 200 Park Avenue New York, New York 10166 (Name and address of agent for service) Registrant's telephone number, including (212) 922-6000 area code: Date of fiscal year end: January 31 Date of reporting period: July 31, 2003 (PAGE) FORM N-CSR ITEM 1. REPORTS TO STOCKHOLDERS. Dreyfus New Jersey Municipal Money Market Fund, Inc. SEMIANNUAL REPORT July 31, 2003 YOU, YOUR ADVISOR AND DREYFUS A MELLON FINANCIAL COMPANY(TM) The views expressed in this report reflect those of the portfolio manager only through the end of the period covered and do not necessarily represent the views of Dreyfus or any other person in the Dreyfus organization. Any such views are subject to change at any time based upon market or other conditions and Dreyfus disclaims any responsibility to update such views. These views may not be relied on as investment advice and, because investment decisions for a Dreyfus fund are based on numerous factors, may not be relied on as an indication of trading intent on behalf of any Dreyfus fund. Not FDIC-Insured * Not Bank-Guaranteed * May Lose Value Contents THE FUND - -------------------------------------------------- 2 Letter from the Chairman 3 Discussion of Fund Performance 6 Statement of Investments 13 Statement of Assets and Liabilities 14 Statement of Operations 15 Statement of Changes in Net Assets 16 Financial Highlights 17 Notes to Financial Statements FOR MORE INFORMATION - -------------------------------------------------------------------------------- Back Cover The Fund Dreyfus New Jersey Municipal Money Market Fund, Inc. LETTER FROM THE CHAIRMAN Dear Shareholder: This semiannual report for Dreyfus New Jersey Municipal Money Market Fund, Inc. covers the six-month period from February 1, 2003, through July 31, 2003. Inside, you'll find valuable information about how the fund was managed during the reporting period, including a discussion with the fund's portfolio manager, Joseph Irace. The reporting period was a challenging time for tax-exempt money market funds. In its ongoing attempts to stimulate renewed economic growth, the Federal Reserve Board reduced a key short-term interest rate to just 1% in June 2003, and yields of tax-exempt money market funds hovered near historical lows. As a result, maintaining a steady stream of current, tax-exempt income has become a challenge for many investors. Nonetheless, we believe that it is important for investors to remember that tax-exempt money market funds have continued to achieve their primary objective of preserving their shareholders' capital. For emergency reserves and money earmarked for near-term needs, we believe that money market funds remain a sound investment. Your financial advisor may be in the best position to recommend the income strategies that are right for you in today's market environment. Thank you for your continued confidence and support. Sincerely, /S/STEPHEN E. CANTER Stephen E. Canter Chairman and Chief Executive Officer The Dreyfus Corporation August 15, 2003 DISCUSSION OF FUND PERFORMANCE Joseph Irace, Portfolio Manager HOW DID DREYFUS NEW JERSEY MUNICIPAL MONEY MARKET FUND, INC. PERFORM DURING THE PERIOD? For the six-month period ended July 31, 2003, the fund produced an annualized yield of 0.52% . Taking into account the effects of compounding, the fund produced an annualized effective yield of 0.52%.(1) During the reporting period we attribute the fund's modest returns to the Federal Reserve Board' s (the "Fed" ) accommodative monetary policy, which included a further reduction of short-term interest rates in June 2003 WHAT IS THE FUND'S INVESTMENT APPROACH? The fund' s objective is to seek as high a level of current income exempt from federal and New Jersey state income taxes as is consistent with the preservation of capital and the maintenance of liquidity. The fund also seeks to maintain a stable $1.00 share price. To pursue this goal, the fund normally invests substantially all of its assets in short-term, high-quality municipal obligations that provide income exempt from federal and New Jersey state income taxes. When pursuing the fund's objective, we employ two primary strategies. First, we attempt to add value by constructing a portfolio of high-quality, tax-exempt money market municipal obligations that provide income exempt from federal and New Jersey state income taxes. Second, we actively manage the fund's average maturity in anticipation of interest-rate trends and supply-and-demand changes in New Jersey's short-term municipal marketplace. For example, if we expect an increase in short-term supply, we may reduce the weighted average maturity of the fund, which should better position the fund to purchase new securities with higher yields, if higher yields materialize. Yields tend to rise when there is an increase The Fund DISCUSSION OF FUND PERFORMANCE (CONTINUED) in new-issue supply competing for investor interest. New securities generally are issued with maturities in the one-year range and tend to lengthen the fund's weighted average maturity. If we anticipate limited new-issue supply, we may extend the portfolio's average maturity to maintain then-current yields for as long as we think practical. At other times, we try to maintain an average maturity that reflects our view of short-term interest-rate trends and future supply-and-demand considerations. WHAT OTHER FACTORS INFLUENCED THE FUND'S PERFORMANCE? During the reporting period, short-term interest rates generally trended lower as economic weakness persisted. In an attempt to stimulate renewed growth, the Fed reduced short-term interest rates by 25 basis points in late June 2003. Since investors widely anticipated the interest-rate reduction before it was announced, tax-exempt money market yields began to decline in the spring Downward pressure on money-market yields was intensified by ongoing investor demand for short-term tax-exempt securities. During the opening months of the reporting period, uncertainty related to the war in Iraq contributed to investors' cautious attitudes. Despite the success of major combat operations in early April, a subsequent stock market rally and mounting signs of a long-awaited economic recovery, investor demand for tax-exempt money market instruments remained relatively strong through the reporting period's end. The weak economy influenced the fund and tax-exempt money markets in other ways as well. For example, due to lower than expected tax revenues, most states and municipalities faced widening budget deficits. New Jersey's fiscal problems were severe enough to cause one of the major credit-rating agencies to place the state on "negative outlook" early in the reporting period. Soon after the reporting period ended, however, New Jersey bridged its budget gap for the 2004 fiscal year by passing a $24 billion balanced budget that includes $600 million in tax and fee increases, as well as cuts in spending on the arts, higher education and property-tax rebates. In this challenging environment, we focused on local issuers that we consider fiscally sound. In addition, because yield differences among money market instruments of various maturities were relatively narrow during much of the reporting period, we maintained the fund's weighted average maturity in a range that we consider in line with that of other municipal money market funds. Toward the end of the reporting period, however, we began to extend the fund's weighted average maturity as yield differences widened. This shift was a result of our efforts to reduce the fund's holdings of relatively low-yielding variable-rate demand notes, on which yields are reset daily or weekly, in favor of what we regarded as more attractive yields among longer-term municipal notes. WHAT IS THE FUND'S CURRENT STRATEGY? Amid more convincing signs of economic recovery, long-term bond yields surged in July. While yields of tax-exempt money market funds have not risen nearly as much, the yield differences between very short-term money market instruments and one-year municipal notes have widened. Accordingly, we recently have taken advantage of opportunities to build a "laddered" portfolio of municipal notes that mature in stages over the next year. We expect this strategy to help us strike an appropriate balance between our ability to capture potential opportunities for higher yields and the need to manage the risks of unexpected interest-rate declines. August 15, 2003 (1) ANNUALIZED EFFECTIVE YIELD IS BASED UPON DIVIDENDS DECLARED DAILY AND REINVESTED MONTHLY. PAST PERFORMANCE IS NO GUARANTEE OF FUTURE RESULTS. YIELDS FLUCTUATE. INCOME MAY BE SUBJECT TO STATE AND LOCAL TAXES FOR NON-NEW JERSEY RESIDENTS, AND SOME INCOME MAY BE SUBJECT TO THE FEDERAL ALTERNATIVE MINIMUM TAX (AMT) FOR CERTAIN INVESTORS. AN INVESTMENT IN THE FUND IS NOT INSURED OR GUARANTEED BY THE FDIC OR THE U.S. GOVERNMENT. ALTHOUGH THE FUND SEEKS TO PRESERVE THE VALUE OF YOUR INVESTMENT AT $1.00 PER SHARE, IT IS POSSIBLE TO LOSE MONEY BY INVESTING IN THE FUND. The Fund STATEMENT OF INVESTMENTS July 31, 2003 (Unaudited) Principal TAX EXEMPT INVESTMENTS--102.3% Amount ($) Value ($) - ------------------------------------------------------------------------------------------------------------------------------------ Atlantic City, GO Notes 2%, 8/1/2004 (Insured; MBIA) 1,750,000 1,767,115 Atlantic County Improvement Authority, Revenue, VRDN Pooled Governmental Loan Program .85% (LOC; KBC Bank) 1,200,000 (a) 1,200,000 Bergen County Improvement Authority, MFHR VRDN (Kentshire Apartments Project) .90% (LOC; FNMA) 9,000,000 (a) 9,000,000 Boonton, GO Notes, BAN 1%, 1/30/2004 1,138,888 1,138,888 Brigantine, GO Notes, BAN 1.70%, 1/30/2004 4,300,000 4,310,592 Burlington County, GO Notes: BAN: 1.25%, 2/5/2004 10,916,500 10,920,672 1.15%, 3/6/2004 3,996,000 3,996,575 Refunding 4%, 10/1/2003 (Insured; AMBAC) 760,000 763,598 Burlington County Bridge Commission Pooled Loan Revenue County Guaranteed Governmental Loan Program 3%, 10/15/2003 1,155,000 1,158,519 Camden County Improvement Authority, LR (Cherry Hill Township Library Project) 3%, 5/1/2004 520,000 527,742 Cape May County Municipal Utilities Authority, Refunding: Sewer Revenue 4%, 1/1/2004 (Insured; MBIA) 3,815,000 3,859,110 Solid Waste Revenue 5%, 8/1/2003 (Insured; AMBAC) 250,000 250,000 Chester Township, GO Notes 3.30%, 12/15/2003 (Insured; FGIC) 280,000 282,117 Colts Neck Township, GO Notes, BAN 1.65%, 5/28/2004 1,757,500 1,765,493 Cranbury Township, GO Notes, BAN 2%, 1/8/2004 4,458,000 4,473,438 Dover Municipal Utilities Authority Sewer Revenue, Refunding 2%, 2/15/2004 (Insured; FGIC) 1,460,000 1,466,298 East Brunswick Township, GO Notes, BAN 2%, 9/17/2003 1,400,000 1,400,977 Egg Harbor Township School District, GO Notes Refunding 1.60%, 2/15/2004 (Insured; FSA) 1,000,000 1,002,152 Principal TAX EXEMPT INVESTMENTS (CONTINUED) Amount ($) Value ($) - ------------------------------------------------------------------------------------------------------------------------------------ Essex County, GO Notes Refunding 5%, 11/15/2003 (Insured; FGIC) 1,390,000 1,405,275 Essex County Improvement Authority Private Schoools Revenue, VRDN (The Children's Institute Project) .90% (LOC; Wachovia Bank) 1,665,000 (a) 1,665,000 Garden State Preservation Trust, Revenue, VRDN (Open Space & Farmland) .99% (Insured; FSA and Liquidity Facility; BNP Paribas) 4,180,000 (a) 4,180,000 Garfield, GO Notes, TAN 1.10%, 11/12/2003 3,500,000 3,500,957 Haledon, GO Notes, BAN 1.80%, 4/30/2004 3,762,000 3,778,911 Hudson County Improvement Authority, Revenue, VRDN Essential Purpose Pooled Government Program .80% (LOC; The Bank of New York) 14,500,000 (a) 14,500,000 Hunterdon County, GO Notes, General Improvement 2%, 12/1/2003 600,000 601,487 Linden, GO Notes, BAN 1.50%, 6/3/2004 2,475,000 2,484,243 Medford Township, GO Notes, BAN 1.20%, 7/23/2004 1,723,300 1,726,291 County of Mercer, GO Notes, Refunding 4%, 8/1/2003 470,000 470,000 Mercer County Improvement Authority, LR Governmental Lease Program 2%, 9/1/2003 (Insured; AMBAC) 915,000 915,716 Middle Township School District, GO Notes, GAN 2%, 10/17/2003 5,000,000 5,005,084 Middlesex County Improvement Authority, LR: 2%, 9/15/2003 1,025,000 1,025,687 2%, 6/15/2004 950,000 957,794 Monmouth County Improvement Authority, Revenue: Capital Equipment Pooled Lease Program 5%, 10/1/2003 500,000 503,140 Governmental Loan Program 4.50%, 12/1/2003 (Insured; AMBAC) 515,000 520,536 Township of Montgomery, GO Notes 2.25%, 2/1/2004 2,500,000 2,514,045 Montgomery Township School District, GO Notes 5.45%, 8/1/2003 (Insured; FGIC) 100,000 100,000 The Fund STATEMENT OF INVESTMENTS (Unaudited) (CONTINUED) Principal TAX EXEMPT INVESTMENTS (CONTINUED) Amount ($) Value ($) - ------------------------------------------------------------------------------------------------------------------------------------ Morris Plains, GO Notes, BAN 1.75%, 7/29/2004 2,569,000 2,587,906 Morristown, GO Notes, TAN 1.15%, 2/27/2004 3,000,000 3,002,549 New Brunswick, GO Notes: 1.85%, 8/13/2003 5,000,000 5,000,598 BAN 1.85%, 8/13/2003 7,207,000 7,207,862 New Jersey Building Authority, Building Revenue VRDN, Putters Program .85% (Insured; MBIA and Liquidity Facility; JPMorgan Chase Bank) 4,185,000 (a) 4,185,000 New Jersey Economic Development Authority VRDN: EDR: (Diocese of Metuchen) .80% (LOC; Fleet National Bank) 6,000,000 (a) 6,000,000 (Encap Golf Holdings LLC): .85% Series A (LOC; Bayerische Landesbank) 9,500,000 (a) 9,500,000 .85% Series B (LOC; Bayerische Landesbank) 15,000,000 (a) 15,000,000 (Institute of Electrical Engineers) .85% (LOC; Wachovia Bank) 3,065,000 (a) 3,065,000 (Kenwood USA Corp. Project) .85% (LOC; The Bank of New York) 5,900,000 (a) 5,900,000 (Stamato Realty LLC Project) .90% (LOC; Valley National Bank) 4,735,000 (a) 4,735,000 (Wood Hollow Associates) .90% (LOC; Wachovia Bank) 2,015,000 (a) 2,015,000 Refunding: (Airis Newark LLC Project) .85% (Insured; AMBAC and Liquidity Facility; KBC Bank) 7,005,000 (a) 7,005,000 (Jewish Community Metropolitan West) .85% (LOC; Wachovia Bank) 1,000,000 (a) 1,000,000 Industrial Revenue (Buchanan and Zweigle Project) 1% (LOC; Wachovia Bank) 2,760,000 (a) 2,760,000 Manufacturing Facilities Revenue (Rennoc Corp./Santa's Best Project) 1.05% (LOC; ABN-AMRO) 1,905,000 (a) 1,905,000 PCR, Refunding (Hoffman La Roche Inc.) .88% (LOC; Wachovia Bank) 20,000,000 (a) 20,000,000 Principal TAX EXEMPT INVESTMENTS (CONTINUED) Amount ($) Value ($) - ------------------------------------------------------------------------------------------------------------------------------------ New Jersey Economic Development Authority (continued) VRDN (continued): Revenues: (CPC Behavioral Health Care) .90% (LOC; Wachovia Bank) 3,595,000 (a) 3,595,000 (Developmental Disabilities) .90% (LOC; Wachovia Bank) 2,690,000 (a) 2,690,000 (Four Woodbury Mews Project) .96% (LOC; Fleet National Bank) 6,600,000 (a) 6,600,000 (Three Woodbury Mews Project) .96% (LOC; Fleet National Bank) 9,525,000 (a) 9,525,000 (Young Men's Christian Associates) .90% (LOC; Wachovia Bank) 1,585,000 (a) 1,585,000 School Revenue, Refunding (Blair Academy) .85% (LOC; Wachovia Bank) 5,090,000 (a) 5,090,000 Special Facilities Revenue (Port Newark Container LLC) .88% (LOC; Citibank N.A.) 14,000,000 (a) 14,000,000 Thermal Energy Facilities Revenue (Thermal Energy Limited) .85% (LOC; Bank One) 1,300,000 (a) 1,300,000 New Jersey Educational Facilities Authority: College and University Revenue, VRDN (College of New Jersey) .80% (Insured; AMBAC and Liquidity Facility: Bank of Nova Scotia and Toronto Dominion Bank) 24,000,000 (a) 24,000,000 LR (Higher Education Equipment Leasing Fund) 4%, 9/1/2003 2,000,000 2,004,315 New Jersey Environmental Infrastructure Trust, Revenue: Refunding, Waste Water Treatment 2%, 3/1/2004 (Insured; AMBAC) 3,465,000 3,480,970 VRDN, Municipal Securities Trust Receipts .92% (Liquidity Facility; JPMorgan Chase Bank) 500,000 (a) 500,000 New Jersey Health Care Facilities Financing Authority Revenues, VRDN: (Holy Name Hospital) .80% (LOC; Fleet National Bank) 1,800,000 (a) 1,800,000 (Hospital Capital Asset Financing) .80% (LOC; JPMorgan Chase Bank) 5,700,000 (a) 5,700,000 (RWJ Health Care Corp.) .90% (LOC; Commerce Bank N.A.) 14,900,000 (a) 14,900,000 The Fund STATEMENT OF INVESTMENTS (Unaudited) (CONTINUED) Principal TAX EXEMPT INVESTMENTS (CONTINUED) Amount ($) Value ($) - ------------------------------------------------------------------------------------------------------------------------------------ New Jersey Health Care Facilities Financing Authority Revenues, VRDN (continued): (St. Barnabas Medical Center) .80% (LOC; JPMorgan Chase Bank) 7,500,000 (a) 7,500,000 (St. Peters University Hospital) .80% (LOC; Fleet National Bank) 16,000,000 (a) 16,000,000 New Jersey Housing and Mortgage Finance Agency Revenue, VRDN, Merlots Program .95% (Insured; MBIA and Liquidity Facility; Wachovia Bank) 2,295,000 (a) 2,295,000 New Jersey Sports and Exposition Authority Recreational Revenue, VRDN .80% (Insured; MBIA and Liquidity Facility; Credit Suisse) 18,000,000 (a) 18,000,000 New Jersey Transit Corporation Transit Revenue, GAN 5.50%, 2/1/2004 (Insured; AMBAC) 2,000,000 2,042,980 New Jersey Transportation Trust Fund Authority, Revenue VRDN, Merlots Program .90% (Insured; FSA and Liquidity Facility; Wachovia Bank) 2,990,000 (a) 2,990,000 New Jersey Turnpike Authority Turnpike Revenue, VRDN: Merlots Program .90% (Insured; MBIA and Liquidity Facility; Wachovia Bank) 11,680,000 (a) 11,680,000 1.03% (Insured; FGIC and Liquidity Facility; BNP Paribas) 4,000,000 (a) 4,000,000 Newark Housing Authority, MFHR, VRDN 1.05% (Liquidity Facility; Merrill Lynch and LOC; Merrill Lynch) 4,755,000 (a) 4,755,000 Ocean City, GO Notes, BAN 1.75%, 12/9/2003 4,500,000 4,509,978 Ocean County, GO Notes, Refunding 3%, 8/1/2003 2,070,000 2,070,000 Township of Old Bridge, GO Notes, BAN 1.15%, 6/3/2004 2,600,000 2,600,416 Paramus, GO Notes, BAN 1.50%, 8/11/2004 5,232,899 5,258,802 Parsippany Troy Hills Township, GO Notes Refunding 2%, 12/1/2003 1,965,000 1,970,879 Township of Pennsauken, GO Notes, BAN 1.15%, 7/29/2004 8,000,000 8,011,775 Principal TAX EXEMPT INVESTMENTS (CONTINUED) Amount ($) Value ($) - ------------------------------------------------------------------------------------------------------------------------------------ Port Authority of New York and New Jersey Special Obligation Revenue, VRDN Merlots Program .95% (Insured; MBIA and Liquidity Facility; Wachovia Bank) 1,415,000 (a) 1,415,000 Rahway Redevelopment Agency, Revenue (Public Library Project) 2.25%, 10/29/2003 5,780,000 5,789,006 Rahway Valley Sewerage Authority, GO Notes (Sewer Project) 2.25%, 1/14/2004 5,750,000 5,777,118 Rockaway Township, GO Notes, BAN 1.50%, 7/23/2004 1,920,000 1,929,270 Rutherford Board of Education, GO Notes 3.25%, 1/15/2004 (Insured; FGIC) 590,000 595,483 Somerset County Industrial Pollution Control Financing Authority, Industrial Revenue, Refunding, VRDN (American Cyanamid) 1.40% 2,700,000 (a) 2,700,000 Sparta Township, GO Notes, BAN 1.70%, 1/16/2004 7,000,000 7,014,312 Union County Improvement Authority, LR: BAN (Train Station Project) 1.20%, 2/12/2004 4,675,000 4,675,000 Capital Equipment and Infrastructure Program 2%, 5/1/2004 (Insured; AMBAC) 1,080,000 1,086,905 Township of Voorhees, GO Notes, BAN: 2%, Series A, 2/11/2004 2,302,000 2,312,217 2%, Series C, 2/11/2004 1,838,250 1,846,408 West Amwell Township School District Hunterdon County, GO Notes 1.50%, 2/4/2004 1,000,000 1,002,480 Wildwood Crest, GO Notes, BAN 1.75%, 5/21/2004 2,700,000 2,713,505 - ------------------------------------------------------------------------------------------------------------------------------------ TOTAL INVESTMENTS (cost $425,318,186) 102.3% 425,318,186 LIABILITIES, LESS CASH AND RECEIVABLES (2.3%) (9,365,779) NET ASSETS 100.0% 415,952,407 The Fund STATEMENT OF INVESTMENTS (Unaudited) (CONTINUED) Summary of Abbreviations AMBAC American Municipal Bond Assurance GO General Obligation Corporation LOC Letter of Credit BAN Bond Anticipation Notes LR Lease Revenue EDR Economic Development Revenue MBIA Municipal Bond Investors Assurance FGIC Financial Guaranty Insurance Insurance Corporation Company MFHR Multi--Family Housing Revenue FNMA Federal National Mortgage PCR Pollution Control Revenue Association TAN Tax Anticipation Notes FSA Financial Security Assurance TRAN Tax and Revenue Anticipation Notes GAN Grant Anticipation Notes VRDN Variable Rate Demand Notes Summary of Combined Ratings (Unaudited) Fitch or Moody's or Standard & Poor's Value (%) - ------------------------------------------------------------------------------------------------------------------------------------ F1+, F1 VMIG1, MIG1, P1 SP1+SP1, A1+,A1 57.6 AAA, AA, A (b) Aaa, Aa, A (b) AAA, AA, A (b) 14.8 Not Rated (c) Not Rated (c) Not Rated (c) 27.6 100.0 (A) SECURITIES PAYABLE ON DEMAND. VARIABLE INTEREST RATE--SUBJECT TO PERIODIC CHANGE. (B) NOTES WHICH ARE NOT F, MIG AND SP RATED ARE REPRESENTED BY BOND RATINGS OF THE ISSUERS. (C) SECURITIES WHICH, WHILE NOT RATED BY FITCH, MOODY'S AND STANDARD & POOR'S, HAVE BEEN DETERMINED BY THE MANAGER TO BE OF COMPARABLE QUALITY TO THOSE RATED SECURITIES IN WHICH THE FUND MAY INVEST. SEE NOTES TO FINANCIAL STATEMENTS. STATEMENT OF ASSETS AND LIABILITIES July 31, 2003 (Unaudited) Cost Value - -------------------------------------------------------------------------------- ASSETS ($): Investments in securities--See Statement of Investments 425,318,186 425,318,186 Interest receivable 1,457,273 Prepaid expenses 11,399 426,786,858 - -------------------------------------------------------------------------------- LIABILITIES ($): Due to The Dreyfus Corporation and affiliates 213,340 Cash overdraft due to Custodian 2,517,814 Payable for investment securities purchased 8,028,883 Payable for shares of Common Stock redeemed 42,432 Accrued expenses 31,982 10,834,451 - -------------------------------------------------------------------------------- NET ASSETS ($) 415,952,407 - -------------------------------------------------------------------------------- COMPOSITION OF NET ASSETS ($): Paid-in capital 416,132,746 Accumulated net realized gain (loss) on investments (180,339) - -------------------------------------------------------------------------------- NET ASSETS ($) 415,952,407 - -------------------------------------------------------------------------------- SHARES OUTSTANDING (2 billion shares of $.001 par value Common Stock authorized) 416,133,716 NET ASSET VALUE, offering and redemption price per share ($) 1.00 SEE NOTES TO FINANCIAL STATEMENTS. The Fund STATEMENT OF OPERATIONS Six Months Ended July 31, 2003 (Unaudited) - -------------------------------------------------------------------------------- INVESTMENT INCOME ($): INTEREST INCOME 2,464,718 EXPENSES: Management fee--Note 2(a) 1,063,495 Shareholder servicing costs--Note 2(b) 205,618 Professional fees 21,742 Directors' fees and expenses--Note 2(c) 21,404 Custodian fees 21,332 Prospectus and shareholders' reports 9,943 Registration fees 5,639 Miscellaneous 8,981 TOTAL EXPENSES 1,358,154 INVESTMENT INCOME--NET 1,106,564 - -------------------------------------------------------------------------------- NET REALIZED GAIN (LOSS) ON INVESTMENTS--NOTE 1(B) ($) 2,565 NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS 1,109,129 SEE NOTES TO FINANCIAL STATEMENTS. STATEMENT OF CHANGES IN NET ASSETS Six Months Ended July 31, 2003 Year Ended (Unaudited) January 31, 2003 - -------------------------------------------------------------------------------- OPERATIONS ($): Investment income--net 1,106,564 3,656,189 Net realized gain (loss) on investments 2,565 20,852 Net unrealized appreciation (depreciation) on investments -- (735) NET INCREASE (DECREASE) IN NET ASSETS RESULTING FROM OPERATIONS 1,109,129 3,676,306 - -------------------------------------------------------------------------------- DIVIDENDS TO SHAREHOLDERS FROM ($): INVESTMENT INCOME--NET (1,106,564) (3,656,189) - -------------------------------------------------------------------------------- CAPITAL STOCK TRANSACTIONS ($1.00 per share): Net proceeds from shares sold 283,113,269 547,671,550 Dividends reinvested 990,798 3,258,279 Cost of shares redeemed (295,153,955) (592,442,039) INCREASE (DECREASE) IN NET ASSETS FROM CAPITAL STOCK TRANSACTIONS (11,049,888) (41,512,210) TOTAL INCREASE (DECREASE) IN NET ASSETS (11,047,323) (41,492,093) - -------------------------------------------------------------------------------- NET ASSETS ($): Beginning of Period 426,999,730 468,491,823 END OF PERIOD 415,952,407 426,999,730 SEE NOTES TO FINANCIAL STATEMENTS. The Fund FINANCIAL HIGHLIGHTS The following table describes the performance for the fiscal periods indicated. Total return shows how much your investment in the fund would have increased (or decreased) during each period, assuming you had reinvested all dividends and distributions. These figures have been derived from the fund's financial statements. Six Months Ended Year Ended January 31, July 31, 2003 -------------------------------------------------------------------- (Unaudited) 2003 2002 2001 2000 1999 - ------------------------------------------------------------------------------------------------------------------------------------ PER SHARE DATA ($): Net asset value, beginning of period 1.00 1.00 1.00 1.00 1.00 1.00 Investment Operations: Investment income--net .003 .008 .020 .033 .025 .027 Distributions: Dividends from investment income--net (.003) (.008) (.020) (.033) (.025) (.027) Net asset value, end of period 1.00 1.00 1.00 1.00 1.00 1.00 - ------------------------------------------------------------------------------------------------------------------------------------ TOTAL RETURN (%) .52(a) .83 2.06 3.32 2.54 2.69 - ------------------------------------------------------------------------------------------------------------------------------------ RATIOS/SUPPLEMENTAL DATA (%): Ratio of expenses to average net assets .64(a) .65 .65 .67 .66 .67 Ratio of net investment income to average net assets .52(a) .83 2.04 3.25 2.50 2.65 - ------------------------------------------------------------------------------------------------------------------------------------ Net Assets, end of period ($ x 1,000) 415,952 427,000 468,492 439,244 431,543 475,046 (A) ANNUALIZED. SEE NOTES TO FINANCIAL STATEMENTS. NOTES TO FINANCIAL STATEMENTS (Unaudited) NOTE 1--SIGNIFICANT ACCOUNTING POLICIES: Dreyfus New Jersey Municipal Money Market Fund, Inc. (the "fund") is registered under the Investment Company Act of 1940, as amended (the "Act"), as a non-diversified open-end management investment company. The fund's investment objective is to provide investors with as high a level of current income exempt from federal and New Jersey state income taxes as is consistent with the preservation of capital and the maintenance of liquidity. The Dreyfus Corporation (the "Manager") serves as the fund's investment adviser. The Manager is a wholly-owned subsidiary of Mellon Bank, N.A., which is a wholly-owned subsidiary of Mellon Financial Corporation. Dreyfus Service Corporation (the "Distributor"), a wholly-owned subsidiary of the Manager, is the distributor of the fund's shares, which are sold to the public without a sales charge It is the fund's policy to maintain a continuous net asset value per share of $1.00; the fund has adopted certain investment, portfolio valuation and dividend and distribution policies to enable it to do so. There is no assurance, however, that the fund will be able to maintain a stable net asset value per share of $1.00. The fund's financial statements are prepared in accordance with accounting principles generally accepted in the United States, which may require the use of management estimates and assumptions. Actual results could differ from those estimates. (A) PORTFOLIO VALUATION: Investments in securities are valued at amortized cost in accordance with Rule 2a-7 of the Act, which has been determined by the fund's Board of Directors to represent the fair value of the fund's investments. (B) SECURITIES TRANSACTIONS AND INVESTMENT INCOME: Securities transactions are recorded on a trade date basis. Interest income, adjusted for amortization of discounts and premiums on investment, is earned from settlement date and recognized on the accrual basis. Realized gain and loss from securities transactions are recorded on the identified cost The Fund NOTES TO FINANCIAL STATEMENTS (Unaudited) (CONTINUED) basis. Under the terms of the custody agreement, the fund received net earnings credits of $26,778 during the period ended July 31, 2003 based on available cash balances left on deposit. Income earned under this arrangement is included in interest income. The fund follows an investment policy of investing primarily in municipal obligations of one state. Economic changes affecting the state and certain of its public bodies and municipalities may affect the ability of issuers within the state to pay interest on, or repay principal of, municipal obligations held by the fund. (C) DIVIDENDS TO SHAREHOLDERS: It is the policy of the fund to declare dividends daily from investment income-net. Such dividends are paid monthly. Dividends from net realized capital gain, if any, are normally declared and paid annually, but the fund may make distributions on a more frequent basis to comply with the distribution requirements of the Internal Revenue Code of 1986, as amended (the "Code"). To the extent that net realized capital gain can be offset by capital loss carryovers, it is the policy of the fund not to distribute such gain. (D) FEDERAL INCOME TAXES: It is the policy of the fund to continue to qualify as a regulated investment company, which can distribute tax exempt dividends, by complying with the applicable provisions of the Code, and to make distributions of income and net realized capital gain sufficient to relieve it from substantially all federal income and excise taxes. The fund has an unused capital loss carryover of $182,904 available for federal income tax purposes to be applied against future net securities profit, if any, realized subsequent to January 31, 2003. If not applied, $98,991 of the carryover expires in fiscal 2004, $4,210 expires in fiscal 2005, $16,731 expires in fiscal 2006 and $62,972 expires in fiscal 2007. The tax character of distributions paid to shareholders during the fiscal year ended January 31, 2003 was all tax exempt income. The tax character of current year distributions will be determined at the end of the current fiscal year. At July 31, 2003, the cost of investments for federal income tax purposes was substantially the same as the cost for financial reporting purposes (see the Statement of Investments). NOTE 2--MANAGEMENT FEE AND OTHER TRANSACTIONS WITH AFFILIATES: (A) Pursuant to a management agreement with the Manager, the management fee is computed at the annual rate of .50 of 1% of the value of the fund's average daily net assets and is payable monthly. (B) Under the Shareholder Services Plan, the fund reimburses the Distributor, an amount not to exceed an annual rate of .25 of 1% of the value of the fund's average daily net assets for certain allocated expenses of providing personal services and/or maintaining shareholder accounts. The services provided may include personal services relating to shareholder accounts, such as answering shareholder inquiries regarding the fund and providing reports and other information, and services related to the maintenance of shareholder accounts. During the period ended July 31, 2003, the fund was charged $129,182 pursuant to the Shareholder Services Plan. The fund compensates Dreyfus Transfer, Inc., a wholly-owned subsidiary of the Manager, under a transfer agency agreement, for providing personnel and facilities to perform transfer agency services for the fund. During the period ended July 31, 2003, the fund was charged $61,895 pursuant to the transfer agency agreement. (C) Each director who is not an "affiliated person" as defined in the Act receives from the fund an annual fee of $2,500 and an attendance fee of $500 per meeting. The Chairman of the Board receives an additional 25% of such compensation. The Fund NOTES For More Information Dreyfus New Jersey Municipal Money Market Fund, Inc. 200 Park Avenue New York, NY 10166 Manager The Dreyfus Corporation 200 Park Avenue New York, NY 10166 Custodian The Bank of New York 100 Church Street New York, NY 10286 Transfer Agent & Dividend Disbursing Agent Dreyfus Transfer, Inc. 200 Park Avenue New York, NY 10166 Distributor Dreyfus Service Corporation 200 Park Avenue New York, NY 10166 To obtain information: BY TELEPHONE Call 1-800-645-6561 BY MAIL Write to: The Dreyfus Family of Funds 144 Glenn Curtiss Boulevard Uniondale, NY 11556-0144 BY E-MAIL Send your request to info@dreyfus.com ON THE INTERNET Information can be viewed online or downloaded from: http://www.dreyfus.com (c) 2003 Dreyfus Service Corporation 758SA0703 ITEM 2. CODE OF ETHICS. Not applicable. ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT. Not applicable. ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES. Not applicable. ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS. Not applicable. ITEM 6. [RESERVED] ITEM 7. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES. Not applicable. ITEM 8. [RESERVED] ITEM 9. CONTROLS AND PROCEDURES. (a) The Registrant's principal executive and principal financial officers have concluded, based on their evaluation of the Registrant's disclosure controls and procedures as of a date within 90 days of the filing date of this report, that the Registrant's disclosure controls and procedures are reasonably designed to ensure that information required to be disclosed by the Registrant on Form N-CSR is recorded, processed, summarized and reported within the required time periods and that information required to be disclosed by the Registrant in the reports that it files or submits on Form N-CSR is accumulated and communicated to the Registrant's management, including its principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosure. (b) There were no changes to the Registrant's internal controls over financial reporting that occurred during the Registrant's most recently ended fiscal half-year that has materially affected, or is reasonably likely to materially affect, the Registrant's internal control over financial reporting. ITEM 10. EXHIBITS. (a)(1) Not applicable. (a)(2) Certifications of principal executive and principal financial officers as required by Rule 30a-2(a) under the Investment Company Act of 1940. (b) Certification of principal executive and principal financial officers as required by Rule 30a-2(b) under the Investment Company Act of 1940. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the Registrant has duly caused this Report to be signed on its behalf by the undersigned, thereunto duly authorized. DREYFUS NEW JERSEY MUNICIPAL MONEY MARKET FUND, INC. By: /S/STEPHEN E. CANTER Stephen E. Canter President Date: September 24, 2003 Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this Report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated. By: /S/STEPHEN E. CANTER Stephen E. Canter Chief Executive Officer Date: September 24, 2003 By: /S/JAMES WINDELS James Windels Chief Financial Officer Date: September 24, 2003 (PAGE) EXHIBIT INDEX (a)(2) Certifications of principal executive and principal financial officers as required by Rule 30a-2(a) under the Investment Company Act of 1940. (EX-99.CERT) (b) Certification of principal executive and principal financial officers as required by Rule 30a-2(b) under the Investment Company Act of 1940. (EX-99.906CERT) [EX-99.CERT] Exhibit (a)(2) SECTION 302 CERTIFICATIONS I, Stephen E. Canter, certify that: 1. I have reviewed this report on Form N-CSR of DREYFUS NEW JERSEY MUNICIPAL MONEY MARKET FUND, INC.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report; 3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations, changes in net assets, and cash flows (if the financial statements are required to include a statement of cash flows) of the registrant as of, and for, the periods presented in this report; 4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940) for the registrant and have: (a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared; (b) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of this report based on such evaluation; and (c) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal half-year (the registrant's second fiscal half-year in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and 5. The registrant's other certifying officer(s) and I have disclosed to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions): (a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize, and report financial information; and (b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting. By: /S/Stephen E. Canter Stephen E. Canter Chief Executive Officer Date: September 24, 2003 SECTION 302 CERTIFICATIONS I, James Windels, certify that: 1. I have reviewed this report on Form N-CSR of DREYFUS NEW JERSEY MUNICIPAL MONEY MARKET FUND, INC.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report; 3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations, changes in net assets, and cash flows (if the financial statements are required to include a statement of cash flows) of the registrant as of, and for, the periods presented in this report; 4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940) for the registrant and have: (a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared; (b) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of this report based on such evaluation; and (c) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal half-year (the registrant's second fiscal half-year in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and 5. The registrant's other certifying officer(s) and I have disclosed to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions): (a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize, and report financial information; and (b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting. By: /S/JAMES WINDELS James Windels Chief Financial Officer Date: September 24, 2003 (PAGE) [EX-99.906CERT] Exhibit (b) SECTION 906 CERTIFICATIONS In connection with this report on Form N-CSR for the Registrant as furnished to the Securities and Exchange Commission on the date hereof (the "Report"), the undersigned hereby certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that: (1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as applicable; and (2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant. By: /S/STEPHEN E. CANTER Stephen E. Canter Chief Executive Officer Date: September 24, 2003 By: /S/JAMES WINDELS James Windels Chief Financial Officer Date: September 24, 2003 THIS CERTIFICATE IS FURNISHED PURSUANT TO THE REQUIREMENTS OF FORM N-CSR AND SHALL NOT BE DEEMED "FILED" FOR PURPOSES OF SECTION 18 OF THE SECURITIES EXCHANGE ACT OF 1934, OR OTHERWISE SUBJECT TO THE LIABILITY OF THAT SECTION, AND SHALL NOT BE DEEMED TO BE INCORPORATED BY REFERENCE INTO ANY FILING UNDER THE SECURITIES ACT OF 1933 OR THE EXCHANGE ACT OF 1934.