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: 811-2946 DREYFUS 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 area code: (212) 922-6000 Date of fiscal year end: 5/31 Date of reporting period: 11/30/03 FORM N-CSR ITEM 1. REPORTS TO STOCKHOLDERS. Dreyfus Municipal Money Market Fund, Inc. SEMIANNUAL REPORT November 30, 2003 YOU, YOUR ADVISOR AND DREYFUS A MELLON FINANCIAL COMPANY (SM) 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 16 Statement of Assets and Liabilities 17 Statement of Operations 18 Statement of Changes in Net Assets 19 Financial Highlights 20 Notes to Financial Statements FOR MORE INFORMATION - --------------------------------------------------------------------------- Back Cover The Fund Dreyfus Municipal Money Market Fund, Inc. LETTER FROM THE CHAIRMAN Dear Shareholder: This semiannual report for Dreyfus Municipal Money Market Fund, Inc. covers the six-month period from June 1, 2003, through November 30, 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, Colleen Meehan. Recent reports of marked improvement in the growth of U.S. Gross Domestic Product suggest to us that the economy has started to turn the corner. Tax cuts and low mortgage rates have put cash in consumers' pockets, and corporations have begun to increase spending and investment. As a result, after several years of falling interest rates, longer-term bond yields have begun to creep upward. However, the Federal Reserve Board has repeatedly affirmed its commitment to low short-term interest rates, and yields of tax-exempt money market instruments have remained near historical lows. Of course, we have seen upturns before, only to be disappointed when growth proved unsustainable over the longer term. However, based on recent data, we are cautiously optimistic about the current economic environment. As always, we urge you to speak regularly with your financial advisor, who may be in the best position to suggest the Dreyfus funds designed to meet your current needs, future goals and attitudes toward risk. Thank you for your continued confidence and support. Sincerely, /S/STEPHEN E. CANTER Stephen E. Canter Chairman and Chief Executive Officer The Dreyfus Corporation December 15, 2003 DISCUSSION OF FUND PERFORMANCE Colleen Meehan, Portfolio Manager How did Dreyfus Municipal Money Market Fund, Inc. perform during the period? For the six-month period ended November 30, 2003, the fund produced a 0.47% annualized yield. Taking into account the effects of compounding, the fund produced an annualized effective yield of 0.47%.(1) The fund's performance was primarily the result of declining short-term interest rates, including a late-June reduction in the federal funds rate to 1%, a 45-year low. However, a rising supply of tax-exempt money market instruments kept yields high relative to historical norms measured against comparable taxable money market securities. What is the fund's investment approach? The fund seeks as high a level of current income exempt from federal income tax as is consistent with the preservation of capital and the maintenance of liquidity. In pursuing this objective, we employ two primary strategies. First, we normally attempt to add value by constructing a diverse portfolio consisting substantially of high-quality, tax-exempt money market instruments from issuers throughout the United States and its territories that provide income exempt from federal personal income tax. Second, we actively manage the fund's average maturity in anticipation of what we believe are supply-and-demand changes in the short-term municipal marketplace and interest-rate cycles while anticipating liquidity needs. For example, if we expect an increase in short-term supply, we may decrease the average maturity of the fund, which could enable us to take advantage of opportunities when short-term supply increases. Generally, yields tend to rise when there is an increase in new-issue supply competing for investor interest. New securities, which generally are issued with maturities in the one-year range, may in turn lengthen the fund's average maturity. If we anticipate limited new-issue supply, The Fund DISCUSSION OF FUND PERFORMANCE (CONTINUED) we may then look to extend the fund's average maturity to maintain then-current yields for as long as we believe 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? Despite early signs of stronger economic growth, yields of tax-exempt money market funds continued to fall through the spring of 2003 as investors anticipated further interest-rate reductions. Indeed, in late June the Federal Reserve Board (the "Fed") reduced short-term interest rates to 1% and indicated that it intended to keep interest rates low for the foreseeable future to help stimulate a more robust economic recovery and guard against potential deflationary pressures. As a result, yields of high-quality, tax-exempt securities with maturities ranging from overnight to one year fell below 1%. When new evidence of a sustainable economic recovery began to emerge in the summer, longer-term bond prices fell. In fact, the U.S. Commerce Department later estimated that the economy grew at a robust 8.2% annualized rate during the third quarter of 2003. Nonetheless, money market securities remained anchored by the 1% federal funds rate and the Fed's repeated affirmation of its accommodative monetary policy, and tax-exempt yields remained relatively stable during the reporting period. In addition, the economy's recent strength has not yet translated into better fiscal conditions for most states and local governments, and tax receipts have continued to fall short of projections. Many states and municipalities have issued short-term debt securities to bridge their budget gaps, and the rising supply of newly issued instruments has helped make yields of tax-exempt money market securities more attractive relative to their taxable counterparts. At times during the reporting period, tax-exempt money market securities provided 100% of the yield of comparable taxable money market securities. For much of the reporting period, we maintained the fund's weighted average maturity in a range we considered to be longer than average. To capture incrementally higher yields, we purchased insured municipal bonds, notes and commercial paper with maturities between three and nine months.(2) These securities complemented the fund's holdings of variable-rate demand notes (VRDNs), on which yields are reset daily or weekly. What is the fund's current strategy? We recently reduced the fund's weighted average maturity to position the fund for seasonal factors that typically affect tax-exempt money market instruments at year-end. In addition, because yield differences between very short-term instruments and one-year notes recently have been narrow compared to historical norms, it has made little sense to us to extend the fund's weighted average maturity. Of course, we are prepared to adjust our strategies as economic and market conditions evolve. December 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, 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 $1.00 PER SHARE, IT IS POSSIBLE TO LOSE MONEY BY INVESTING IN THE FUND. (2) INSURANCE ON INDIVIDUAL PORTFOLIO SECURITIES EXTENDS TO THE REPAYMENT OF PRINCIPAL AND THE PAYMENT OF INTEREST IN THE EVENT OF DEFAULT. IT DOES NOT EXTEND TO THE MARKET VALUE OF THE PORTFOLIO SECURITIES OR THE VALUE OF THE FUND'S SHARES. The Fund STATEMENT OF INVESTMENTS November 30, 2003 (Unaudited) Principal TAX EXEMPT INVESTMENTS--99.2% Amount ($) Value ($) - ------------------------------------------------------------------------------------------------------------------------------------ ARIZONA--2.3% Arizona Health Facilities Authority, Health Care Facilities Revenue, VRDN (The Terraces Project) 1.10% (LOC; Lloyds TSB Bank PLC) 7,510,000 (a) 7,510,000 Maricopa County Industrial Development Authority, MFHR (San Clemente Apartments Project) 1.16%, 4/15/2004 (GIC; Transamerica Finance) 6,000,000 6,000,000 Phoenix Industrial Development Authority, MFHR (Garfield Papago Center Apartments Project) 1.15%, 4/15/2004 8,600,000 (b) 8,600,000 ARKANSAS--.6% Pulaski County Public Facilities Board, MFHR, VRDN (Chapelridge Project) 1.25% (LOC; Regions Bank) 5,650,000 (a) 5,650,000 CALIFORNIA--4.2% State of California, GO Notes, RAW 2%, 6/16/2004 (Liquidity Facility: Lehman Brothers Holdings, Merrill Lynch and Societe Generale) 40,000,000 40,189,460 COLORADO--4.6% Colorado Housing and Finance Authority, Revenue: (Single Family Housing-Class I-IV) 1.18%, 11/1/2004 5,000,000 5,000,000 VRDN (Multifamily Housing-Class I-IV) 1.07% (GIC; CDC Funding Corp. and Liquidity Facility; FHLB) 10,640,000 (a) 10,640,000 City and County of Denver, Airport Revenue, Refunding VRDN 1.20% (Insured; MBIA and Liquidity Facility; Bank One) 10,000,000 (a) 10,000,000 Mountain Village Housing Authority, Housing Facilities Revenue, VRDN (Village Court Apartments Project) 1.27% (LOC; U.S. Bank NA) 7,690,000 (a) 7,690,000 Southern Ute Indian Tribe of the Southern Ute Indian Reservation, Industrial Revenue 1.10%, 2/3/2004 10,000,000 10,000,000 DELAWARE--4.3% Delaware Economic Development Authority, VRDN: IDR, Refunding (Delaware Clean Power Project) 1.17% (LOC; Motiva Enterprises) 30,000,000 (a) 30,000,000 MFHR (School House Project) 1.15% (LOC; HSBC Bank USA) 6,900,000 (a) 6,900,000 Sussex County, IDR, VRDN (Pats Inc. Project) 1.35% (LOC; Allfirst Bank) 4,370,000 (a) 4,370,000 Principal TAX EXEMPT INVESTMENTS (CONTINUED) Amount ($) Value ($) - ------------------------------------------------------------------------------------------------------------------------------------ DISTRICT OF COLUMBIA--1.9% District of Columbia, Enterprise Zone Revenue, VRDN (Trigen-PepCo Energy Services) 1.20% (LOC; Allfirst Bank) 13,055,000 (a) 13,055,000 Metropolitan Washington Airport Authority Transportation Revenue, CP 1.10% 12/10/2003 (Liquidity Facility; WestLB AG) 5,000,000 5,000,000 FLORIDA--4.9% Broward County Housing Finance Authority, SFMR, VRDN Merlots Program 1.25% (Liquidity Facility; Wachovia Bank and LOC: FNMA and GNMA) 2,970,000 (a) 2,970,000 Capital Projects Finance Authority, Continuing Care Retirement Revenue, VRDN (Glenridge On Palmer Ranch) 1.10% (LOC; Bank of Scotland) 13,000,000 (a) 13,000,000 County of Palm Beach, Health Care Facilities Revenue VRDN (Morse Obligation Group) 1.12% (LOC; Key Bank) 7,940,000 (a) 7,940,000 Sunshine State Governmental Financing Commission Revenue, CP: 1%, 1/13/2004 (LOC; Landesbank Hessen-Thuringen Girozentrale) 10,000,000 10,000,000 1.08%, 1/14/2004 (LOC; HSH Nordbank) 6,000,000 6,000,000 Tampa Bay Water Utility System, Water Revenue, VRDN Merlots Program 1.20% (Insured; FGIC and Liquidity Facility; Wachovia Bank) 6,975,000 (a) 6,975,000 GEORGIA--4.2% Cobb County, GO Notes, Refunding 3%, 1/1/2004 3,600,000 3,605,859 Conyers Housing Authority, MFHR, VRDN 1.18% (LOC; Amsouth Bank) 4,000,000 (a) 4,000,000 De Kalb County Housing Authority, MFHR, VRDN (Forest Columbia Apartments Project) 1.25% (LOC; First Tennessee Bank) 8,500,000 (a) 8,500,000 Gwinnett County Development Authority, IDR, VRDN (Suzanna's Kitchen Inc. Project) 1.21% (LOC; Wachovia Bank) 6,600,000 (a) 6,600,000 Savannah Economic Development Authority Industrial Revenue, VRDN (Home Depot Project) 1.20% 17,000,000 (a) 17,000,000 The Fund STATEMENT OF INVESTMENTS (Unaudited) (CONTINUED) Principal TAX EXEMPT INVESTMENTS (CONTINUED) Amount ($) Value ($) - ------------------------------------------------------------------------------------------------------------------------------------ ILLINOIS--10.6% City of Chicago Sales Tax Revenue, VRDN, Merlots Program 1.20% (Insured; FGIC and Liquidity Facility; Wachovia Bank) 10,000,000 (a) 10,000,000 State of Illinois, GO Notes, VRDN Merlots Program 1.20% (Insured; MBIA and Liquidity Facility; Wachovia Bank) 9,990,000 (a) 9,990,000 Illinois Educational Facilities Authority College and University Revenue VRDN (St. Xavier University Project) 1.11% (LOC; ABN-AMRO) 8,600,000 (a) 8,600,000 Illinois Health Facilities Authority Healthcare Facilities Revenues: (Evanston Health Corp.): .87%, 12/11/2003 15,000,000 15,000,000 1%, 3/25/2004 10,000,000 10,000,000 1.08%, 5/17/2004 5,000,000 5,000,000 VRDN (Helping Hand Rehabilitation Center) 1.12% (LOC; Fifth Third Bank) 3,045,000 (a) 3,045,000 Lake County, MFHR, VRDN (Grand Oaks Apartments Project) 1.17% (Insured; FNMA and Liquidity Facility; FNMA) 9,000,000 (a) 9,000,000 Lombard, MFHR, Refunding, VRDN (Clover Creek Apartments Project) 1.13% (Insured; FNMA and Liquidity Facility; FNMA) 10,055,000 (a) 10,055,000 Regional Transportation Authority, GO Notes, VRDN Merlots Program 1.20% (Insured; MBIA and Liquidity Facility; Wachovia Bank) 10,190,000 (a) 10,190,000 Roaring Fork Municipal Products, Housing Revenue, VRDN 1.30% (Liquidity Facility; The Bank of New York and LOC: FHLMC, FNMA and GNMA) 6,095,000 (a) 6,095,000 University of Illinois, University Revenue, VRDN Merlots Program 1.20% (Insured; MBIA and Liquidity Facility; Wachovia Bank) 3,500,000 (a) 3,500,000 INDIANA--2.0% Indiana Health Facility Financing Authority Health Care Facilities Revenue: (Ascension Health Credit) 1.15%, 3/2/2004 6,000,000 6,000,000 VRDN (Clark Memorial Hospital Project) 1.25% (LOC; Bank One) 9,720,000 (a) 9,720,000 City of Shelbyville, EDR, VRDN (K-T Corp. Project) 1.25% (LOC; PNC Bank) 2,990,000 (a) 2,990,000 Principal TAX EXEMPT INVESTMENTS (CONTINUED) Amount ($) Value ($) - ------------------------------------------------------------------------------------------------------------------------------------ IOWA--.2% Iowa Higher Education Loan Authority College and University Revenue, RAN (Palmer University) 2%, 5/24/2004 1,625,000 1,628,053 KANSAS--1.2% Kansas Development Finance Authority, MFHR, Refunding VRDN (Chesapeake Apartments Project) 1.13% (LOC; FHLB) 5,500,000 (a) 5,500,000 Wyandotte County-Kansas City Unified Government GO Notes 1.04%, 2/1/2004 5,623,089 5,623,089 KENTUCKY--1.6% Kentucky Rural Water Finance Corporation Utilities Revenue, VRDN, Flexible Term Program 1.15% (Liquidity Facility; PNC Bank) 8,780,000 (a) 8,780,000 Somerset, Industrial Building Revenue, VRDN (Wonderfuel LLC Project) 1.25% (LOC; Bank of America) 6,720,000 (a) 6,720,000 LOUISIANA--2.1% Louisiana Public Facilities Authority, HR, VRDN 1.15% (LOC; Bank One) 15,000,000 (a) 15,000,000 Quachita Parish Industrial Development Board IDR, VRDN (Garret Manufacturing LLC Project) 1.30% (LOC; Regions Bank) 4,755,000 (a) 4,755,000 MARYLAND--.9% County of Baltimore, Revenue, Refunding, VRDN (Shade Tree Trace) 1.22% (LOC; Allfirst Bank) 6,040,000 (a) 6,040,000 Maryland Economic Development Corporation, Revenue VRDN (Todd/Allan Printing Facility) 1.35% (LOC; Allfirst Bank) 2,125,000 (a) 2,125,000 MASSACHUSETTS--2.0% Mendon Upton Regional School District, GO Notes BAN 1.50%, 4/30/2004 8,000,000 8,016,071 Old Rochester Regional School District, GO Notes, BAN 1.75%, 2/19/2004 11,000,000 11,013,815 MICHIGAN--2.8% Birmingham Economic Development Corporation, LOR VRDN (Brown St. Association Project) 1.40% (LOC; ABN-AMRO) 1,750,000 (a) 1,750,000 City of Detroit, Sewer Disposal Revenue, VRDN Merlots Program 1.20% (Insured; FGIC and Liquidity Facility; Wachovia Bank) 4,685,000 (a) 4,685,000 The Fund STATEMENT OF INVESTMENTS (Unaudited) (CONTINUED) Principal TAX EXEMPT INVESTMENTS (CONTINUED) Amount ($) Value ($) - ------------------------------------------------------------------------------------------------------------------------------------ MICHIGAN (CONTINUED) Detroit Downtown Development Authority, LR, Refunding VRDN (Millender Center Project) 1.15% (LOC; HSBC Bank USA) 7,000,000 (a) 7,000,000 Lake St. Clair Shores Drain District, GO Notes, VRDN 1.22% (Liquidity Facility; Comerica Bank) 1,990,000 (a) 1,990,000 Michigan Hospital Finance Authority, Health Care Facilities Revenue, VRDN, Hospital Equipment Loan Program 1.18% (LOC; ABN-AMRO) 10,000,000 (a) 10,000,000 Michigan Housing Development Authority LOR, Refunding, VRDN (Harbortown Limited Dividend) 1.245% (LOC; Deutsche Bank) 1,000,000 (a) 1,000,000 MINNESOTA--1.1% Dakota County Development Agency, SFMR, Refunding 1.05% 8/1/2004 (Insured; AMBAC) 10,000,000 10,000,000 MISSISSIPPI--1.9% Mississippi Business Finance Corporation, College and University Revenue, VRDN (Belhaven College Project) 1.20% (LOC; First Tennessee Bank) 9,820,000 (a) 9,820,000 University Educational Building Corporation College and University Revenue, VRDN (Campus Improvements Project) 1.17% (Insured; MBIA and Liquidity Facility; Amsouth Bank) 7,820,000 (a) 7,820,000 NEBRASKA--2.8% Nebhelp Incorporated, College and University Revenue VRDN, Multiple Mode Student Loan 1.15% (Insured; MBIA and Liquidity Facility; Lloyds TSB Bank PLC) 26,480,000 (a) 26,480,000 NEVADA--1.1% Clark County School District, GO Notes, VRDN Merlots Program 1.20% (Insured; FSA and Liquidity Facility; Wachovia Bank) 9,990,000 (a) 9,990,000 NEW HAMPSHIRE--2.7% New Hampshire Business Finance Authority, IDR, VRDN (Keeney Manufacturing Co. Project) 1.20% (LOC; Fleet National Bank ) 5,100,000 (a) 5,100,000 New Hampshire Health and Education Facilities Authority Health Care Facilities Revenue, VRDN: (Catholic Medical Center) 1.12% (LOC; Citizens Bank of Massachusetts) 9,905,000 (a) 9,905,000 (Huntington At Nashua) 1.20% (LOC; Comerica Bank) 10,000,000 (a) 10,000,000 Principal TAX EXEMPT INVESTMENTS (CONTINUED) Amount ($) Value ($) - ------------------------------------------------------------------------------------------------------------------------------------ NEW MEXICO--.2% New Mexico Mortgage Finance Authority, Revenue, VRDN 1.22% (Insured; AIG Funding Inc. and Liquidity Facility; Merrill Lynch) 2,365,000 (a) 2,365,000 NEW YORK--3.1% Village of Freeport, GO Notes, BAN 2%, 1/22/2004 5,000,000 5,005,981 Johnson City Central School District, GO Notes, BAN 1.50%, 6/17/2004 4,000,000 4,007,444 New York City Municipal Water Finance Authority Water and Sewer Revenue, CP .95%, 12/10/2003 (LOC: Bayerische Landesbank and WestLB AG) 15,000,000 15,000,000 New York Mortgage Agency Revenue, 1.125%, 4/2/2004 5,000,000 5,000,000 OHIO--3.2% County of Hamilton, Healthcare Facilities Revenue, VRDN (Twin Towers and Twin Lakes) 1.13% (LOC; U.S. Bank NA) 14,000,000 (a) 14,000,000 Lake County, Hospital Facilities Revenue, VRDN (Lake Hospital Systems Inc.) 1.21% (Insured; Radian Bank and Liquidity Facility; Fleet National Bank) 12,000,000 (a) 12,000,000 Lorain County, Independent Living Facilities Revenue VRDN (Elyria United Methodist Project) 1.12% (LOC; Bank One) 4,640,000 (a) 4,640,000 OREGON--.6% Oregon State Housing and Community Services Department SFMR 1.35%, 12/23/2003 6,200,000 6,200,000 PENNSYLVANIA--12.5% Bucks County Industrial Development Authority Healthcare Facilities Revenue, VRDN (Pennswood Village Project) 1.12% (LOC; Fleet National Bank) 7,000,000 (a) 7,000,000 Emmaus General Authority, Revenue, VRDN: 1.13%, Series F-19 (LOC; Depfa Bank PLC) 4,300,000 (a) 4,300,000 1.13%, Sub-Series G-18 (LOC; Depfa Bank PLC) 5,000,000 (a) 5,000,000 Franklin County Industrial Development Authority Industrial Revenue, VRDN (Menno Haven Project) 1.20% (Insured; Radian Bank and Liquidity Facility; Fleet National Bank) 13,200,000 (a) 13,200,000 The Fund STATEMENT OF INVESTMENTS (Unaudited) (CONTINUED) Principal TAX EXEMPT INVESTMENTS (CONTINUED) Amount ($) Value ($) - ------------------------------------------------------------------------------------------------------------------------------------ PENNSYLVANIA (CONTINUED) Lancaster County Hospital Authority, Senior Living Facilities Revenue, VRDN: (Luthercare Project) 1.22% (LOC; Allfirst Bank) 17,695,000 (a) 17,695,000 (QuarryVille Presbyterian) 1.15% (LOC; Allfirst Bank) 7,700,000 (a) 7,700,000 (Willow Valley Retirement Project) 1.20% (Insured; Radian Bank and Liquidity Facility; Fleet National Bank) 10,000,000 (a) 10,000,000 Montgomery County Higher Education and Health Authority, Revenue, VRDN (Pennsylvania Higher Education and Health): 1.16% (LOC; Allfirst Bank) 8,455,000 (a) 8,455,000 1.20% (LOC; M&T Bank) 12,415,000 (a) 12,415,000 State of Pennsylvania, GO Notes, VRDN, Merlots Program 1.20% (Insured; MBIA and Liquidity Facility; Wachovia Bank) 5,875,000 (a) 5,875,000 Philadelphia Authority for Industrial Development Industrial Revenue, VRDN (30th Street Station Project) 1.10% (Insured; MBIA and Liquidity Facility; The Bank of New York) 8,600,000 (a) 8,600,000 Philadelphia Gas Works, Electric Revenue, CP 1.12%, 12/5/2003 (LOC; JPMorgan Chase Bank) 15,100,000 15,100,000 Philadelphia Hospitals and Higher Education Facilities Authority, Healthcare Facilities Revenue, VRDN (Children's Hospital Project) 1.10% (LOC: JPMorgan Chase Bank and WestLB AG) 3,400,000 (a) 3,400,000 RHODE ISLAND--.5% Rhode Island Housing and Mortgage Finance Corporation Revenue 4%, 12/22/2003 5,000,000 5,008,423 SOUTH CAROLINA--1.6% South Carolina Association of Governmental Organizations COP 1.50%, 4/14/2004 15,000,000 15,024,662 TENNESSEE--3.2% Blount County Public Building Authority, Revenue, VRDN (Local Government Public Improvement) 1.13% (Insured; AMBAC and Liquidity Facility; Regions Bank) 2,520,000 (a) 2,520,000 Knoxville Utilities Board, Water Revenue, VRDN 1.07% (Insured; FSA and Liquidity Facility; SunTrust Bank) 11,500,000 11,500,000 Principal TAX EXEMPT INVESTMENTS (CONTINUED) Amount ($) Value ($) - ------------------------------------------------------------------------------------------------------------------------------------ TENNESSEE (CONTINUED) Metropolitan Government Nashville and Davidson County Health and Educational Facility Board, College and University Revenue, VRDN (Vanderbilt University) 1.06% (Liquidity Facility: Bayerische Landesbank and Landesbank Hessen-Thuringen Girozentrale) 16,555,000 (a) 16,555,000 TEXAS--8.9% City of Austin, Water and Wastewater Systems Revenue VRDN, Merlots Program 1.20% (Insured; FSA and Liquidity Facility; Wachovia Bank) 6,415,000 (a) 6,415,000 Dallas Fort-Worth International Airport Facilities Improvement Co., Airport Revenue, VRDN, Merlots Program 1.25%, (Insured; FSA and Liquidity Facility; Wachovia Bank) 3,540,000 (a) 3,540,000 City of Denton, Utility System Revenue Refunding and Improvement 5.625%, 12/1/2003 (Insured; FSA) 3,545,000 3,545,000 Greater Texas Student Loan Corporation Student Loan Revenue, VRDN 1.14% (LOC; Student Loan Marketing Corp.) 10,000,000 (a) 10,000,000 Harris County Health Facilities Development Authority HR, VRDN (Texas Children's Hospital) 1.12% (Insured; MBIA and Liquidity Facility; JPMorgan Chase Bank) 7,500,000 (a) 7,500,000 Port of Port Arthur Navigation District, Environmental Facilities Revenue, Refunding, VRDN (Motiva Enterprises Project) 1.20% 5,000,000 (a) 5,000,000 City of Richardson, GO Notes 1%, 6/15/2004 (Liquidity Facility; Bank of America) 5,000,000 5,000,000 City of San Antonio, Water and Sewer Revenue VRDN, Merlots Program 1.20% (Liquidity Facility; Wachovia Bank) 6,000,000 (a) 6,000,000 State of Texas: GO Notes, Refunding (College Student Loan) .95% 7/1/2004 (Liquidity Facility; Landesbank Hessen-Thuringen Girozentrale) 20,000,000 20,000,000 Revenue, TRAN 2%, 8/31/2004 17,000,000 17,109,070 The Fund STATEMENT OF INVESTMENTS (Unaudited) (CONTINUED) Principal TAX EXEMPT INVESTMENTS (CONTINUED) Amount ($) Value ($) - ------------------------------------------------------------------------------------------------------------------------------------ UTAH--.8% Intermountain Power Agency, GO Notes, CP 1.10%, 12/8/2003 (Liquidity Facility: Bank of America and Scotia Bank) 7,200,000 7,200,000 WASHINGTON--1.8% Pierce County Economic Development Corporation Industrial Revenue, VRDN (Seatac Packaging Project) 1.20% (LOC; HSBC Bank USA) 5,300,000 (a) 5,300,000 State of Washington, GO Notes, VRDN, Merlots Program 1.20% (Insured: FGIC and MBIA and Liquidity Facility; Wachovia Bank) 5,010,000 (a) 5,010,000 Washington Housing Finance Commission, MFHR, VRDN (Holly Village Senior Living) 1.15% (Insured; FNMA and Liquidity Facility; FNMA) 6,600,000 (a) 6,600,000 WYOMING--2.8% Campbell County, IDR (Two Elk Power Generation Station Project) 1.40%, 12/3/2003 (GIC; Bayerische Landesbank) 27,000,000 27,000,000 TOTAL INVESTMENTS (cost $939,906,927) 99.2% 939,906,927 CASH AND RECEIVABLES (NET) .8% 7,401,953 NET ASSETS 100.0% 947,308,880 Summary of Abbreviations AMBAC American Municipal Bond GO General Obligation Assurance Corporation HR Hospital Revenue BAN Bond Anticipation Notes IDR Industrial Development Revenue CP Commercial Paper LOC Letter of Credit EDR Economic Development Revenue LOR Limited Obligation Revenue FGIC Financial Guaranty Insurance LR Lease Revenue Company MBIA Municipal Bond Investors FHLB Federal Home Loan Bank Assurance Insurance FHLMC Federal Home Loan Mortgage Corporation Corporation MFHR Multi-Family Housing Revenue FNMA Federal National Mortgage RAN Revenue Anticipation Notes Association RAW Revenue Anticipation Warrants FSA Financial Security Assurance RAW Revenue Anticipation Warrants GIC Guaranteed Investment Contract SFMR Single Family Mortgage Revenue GNMA Government National Mortgage TRAN Tax and Revenue Anticipation Association 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 91.7 AAA, AA, A (c) Aaa, Aaa, A (c) AAA, AA, A (c) 4.5 Not Rated (d) Not Rated (d) Not Rated (d) 3.8 100.0 (A) SECURITIES PAYABLE ON DEMAND. VARIABLE INTEREST RATE--SUBJECT TO PERIODIC CHANGE. (B) BONDS WHICH ARE PREREFUNDED ARE COLLATERALIZED BY U.S. GOVERNMENT SECURITIES WHICH ARE HELD IN ESCROW AND ARE USED TO PAY PRINCIPAL AND INTEREST ON THE MUNICIPAL ISSUE AND TO RETIRE THE BONDS IN FULL AT THE EARLIEST REFUNDING DATE. (C) NOTES WHICH ARE NOT F, MIG AND SP RATED ARE REPRESENTED BY BOND RATINGS OF THE ISSUERS. (D) 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. The Fund STATEMENT OF ASSETS AND LIABILITIES November 30, 2003 (Unaudited) Cost Value - -------------------------------------------------------------------------------- ASSETS ($): Investments in securities--See Statement of Investments 939,906,927 939,906,927 Cash 5,152,148 Interest receivable 2,684,286 Prepaid expenses 28,813 947,772,174 - -------------------------------------------------------------------------------- LIABILITIES ($): Due to The Dreyfus Corporation and affiliates 422,320 Payable for shares of Common Stock redeemed 19,600 Accrued expenses 21,374 463,294 - -------------------------------------------------------------------------------- NET ASSETS ($) 947,308,880 - -------------------------------------------------------------------------------- COMPOSITION OF NET ASSETS ($): Paid-in capital 947,150,340 Accumulated net realized gain (loss) on investments 158,540 - -------------------------------------------------------------------------------- NET ASSETS ($) 947,308,880 - -------------------------------------------------------------------------------- SHARES OUTSTANDING (5 billion shares of $.001 par value Common Stock authorized) 948,926,518 NET ASSET VALUE, offering and redemption price per share ($) 1.00 SEE NOTES TO FINANCIAL STATEMENTS.. STATEMENT OF OPERATIONS Six Months Ended November 30, 2003 (Unaudited) - -------------------------------------------------------------------------------- INVESTMENT INCOME ($): INTEREST INCOME 5,040,244 EXPENSES: Management fee--Note 2(a) 2,373,662 Shareholder servicing costs--Note 2(b) 279,954 Custodian fees 44,057 Director's fees and expenses--Note 2(c) 31,065 Professional fees 27,262 Registration fees 19,225 Prospectus and shareholders' reports 1,324 Miscellaneous 12,846 TOTAL EXPENSES 2,789,395 INVESTMENT INCOME--NET, REPRESENTING NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS 2,250,849 SEE NOTES TO FINANCIAL STATEMENTS. The Fund STATEMENT OF CHANGES IN NET ASSETS Six Months Ended November 30, 2003 Year Ended (Unaudited) May 31, 2003 - -------------------------------------------------------------------------------- OPERATIONS ($): Investment income--net 2,250,849 7,790,449 Net realized gain (loss) from investments -- 248,020 NET INCREASE (DECREASE) IN NET ASSETS RESULTING FROM OPERATIONS 2,250,849 8,038,469 - -------------------------------------------------------------------------------- DIVIDENDS TO SHAREHOLDERS FROM ($): INVESTMENT INCOME--NET (2,250,849) (7,790,449) - -------------------------------------------------------------------------------- CAPITAL STOCK TRANSACTIONS ($1.00 per share) Net proceeds from shares sold 915,952,614 1,613,536,986 Dividends reinvested 984,304 3,531,255 Cost of shares redeemed (874,391,552) (1,737,858,623) INCREASE (DECREASE) IN NET ASSETS FROM BENEFICIAL INTEREST TRANSACTIONS 42,545,366 (120,790,382) TOTAL INCREASE (DECREASE) IN NET ASSETS 42,545,366 (120,542,362) - -------------------------------------------------------------------------------- NET ASSETS ($): Beginning of Period 904,763,514 1,025,305,876 END OF PERIOD 947,308,880 904,763,514 SEE NOTES TO FINANCIAL STATEMENTS. 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 May 31, November 30, 2003 --------------------------------------------------------------------- (Unaudited) 2003 2002 2001 2000 1999 - ------------------------------------------------------------------------------------------------------------------------------------ PER SHARE DATA ($): Net asset value, beginning of period 1.00 1.00 1.00 1.00 1.00 1.00 Investment Operations: Investment income--net .002 .008 .015 .034 .030 .027 Distributions: Dividends from investment income--net (.002) (.008) (.015) (.034) (.030) (.027) Net asset value, end of period 1.00 1.00 1.00 1.00 1.00 1.00 - ------------------------------------------------------------------------------------------------------------------------------------ TOTAL RETURN (%) .48(a) .84 1.51 3.46 3.05 2.78 - ------------------------------------------------------------------------------------------------------------------------------------ RATIOS/SUPPLEMENTAL DATA (%): Ratio of expenses to average net assets .59(a) .59 .58 .59 .62 .63 Ratio of net investment income to average net assets .47(a) .83 1.50 3.39 3.00 2.73 - ------------------------------------------------------------------------------------------------------------------------------------ Net Assets, end of period ($ x 1,000) 947,309 904,764 1,025,306 920,718 829,854 901,128 (A) ANNUALIZED. SEE NOTES TO FINANCIAL STATEMENTS. The Fund NOTES TO FINANCIAL STATEMENTS (Unaudited) NOTE 1--SIGNIFICANT ACCOUNTING POLICIES: Dreyfus Municipal Money Market Fund, Inc. (the "fund") is registered under the Investment Company Act of 1940, as amended (the "Act"), as a diversified open-end management investment company. The fund's investment objective is to maximize current income exempt from federal income tax to the extent 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 discount and premium on investments, is earned from settlement date and recognized on the accrual basis. Realized gain and loss from securities transactions are recorded on the identified cost basis. Cost of investments represent amortized cost. Under the terms of the custody agreement, the fund received net earnings credits of $41,980 during the period ended November 30, 2003 based on available cash balances left on deposit. Income earned under this arrangement is included in interest income. (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, if any, 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 tax character of distributions paid to shareholders during the fiscal year ended May 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 November 30, 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. The Fund NOTES TO FINANCIAL STATEMENTS (Unaudited) (CONTINUED) (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 November 30, 2003, the fund was charged $147,732 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 November 30, 2003, the fund was charged $74,490 pursuant to the transfer agency agreement. (C) Each Board member also serves as a Board member of other funds within the Dreyfus complex. Annual retainer fees and attendance fees are allocated to each fund based on net assets. NOTES For More Information Dreyfus 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) 2004 Dreyfus Service Corporation 910SA1103 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 control 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 MUNICIPAL MONEY MARKET FUND, INC. By: /S/STEPHEN E. CANTER Stephen E. Canter President Date: January 23, 2004 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: January 23, 2004 By: /S/JAMES WINDELS James Windels Chief Financial Officer Date: January 23, 2004 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)