MARKETS

Money market fund yields were mixed in the latest reporting week, institutions that track these yields and rates said. The average seven-day simple yields rose to 7.67 percent from 7.65 percent, and 30-day simple yields fell to 7.67 percent from 7.68 percent.

The Treasury will auction $11.25 billion in two-year notes next Tuesday and $8.25 billion in four-year notes next Wednesday.

COMPANIES

MCI Communications introduced a new package of services for small and mid-size businesses. Called MCI Vision, the package includes single-invoice billing and remote-exchange service, in which a caller who dials a local number is automatically connected with a distant location. MCI said it has about a 15 percent share of the $18 billion market for long-distance services for small businesses.

Northwest Airlines is considering expanding by buying part or all of another carrier, Chairman Alfred Checchi said, but he declined to specify possible targets.

General Development, one of Florida's largest real estate developers, won bankruptcy court approval of its $41 million financing agreement. The accord, the result of a deal between General Development and a bank group, replaces a $10.5 million credit accord that expired last week.

Revco said it will close two Alabama stores and sell 44 other outlets, raising to 485 the number of stores to be eliminated from what was once the nation's largest drugstore chain. Revco has been operating under federal bankruptcy protection since July 1988.

GM has fixed the problem of a swelling door on its new Saturn model, and the first marketable car should roll off a Tennessee assembly line on schedule this summer, the company said.

Data Broadcasting Technologies of Fairfax, a unit of Financial News Network Inc., entered a five-year agreement with VeriFone Inc. to provide receivers for use in automated credit card authorizations and other financial transactions. Terms were not disclosed.

Ameritech and Bell Atlantic, which recently agreed to pay $2.4 billion to acquire the newly privatized New Zealand Telephone Co., filed papers with the U.S. District Court here asking for authority to retain the foreign company's interest in the international traffic between the United States and New Zealand.

INTERNATIONAL

EC governments agreed on two major regulations that will abolish borders in the fields of insurance and transportation of goods.

ACQUISITIONS

American Cyanamid will sell the household products portion of its Shulton Group, which includes such products as Pine-Sol cleaner and Combat insecticide, to Clorox for $465 million. Cyanamid sold Shulton's toiletries business to Procter & Gamble last week.

Du Pont's Australian unit agreed to buy Fibremakers Australia Proprietary for $150 million from JGL Investments.

CONTRACTS

Cray Research received an order for a Cray Y-MPS-664 supercomputer from Nissan Motor Co. at a cost of about $22 million, Nissan said.

Advanced Technology Inc. of Reston has been awarded two five-year contracts totaling $6 million by the Office of Technology Assistance for data communications support and for analysis and acquisition support.

EARNINGS

Campeau lost $1.7 billion last year, a deterioration from 1988's deficit of $34 million, the Canadian company said. Campeau said it had revenue of $10.4 billion from its department stores, supermarkets and real estate operations in the 12 months ended Jan. 31. That compares with $8.7 billion for 1988.

Humana Inc.'s net income increased 18 percent in the fiscal third quarter ended May 31.

H&R Block said fiscal 1990 earnings were up 23.3 percent.

PEOPLE

Michael A. Hedges, a vice president of the Silver Spring-based Mid-Atlantic Coca-Cola Bottling Co. who helped bribe a government worker to increase sales to the Navy, has been sentenced to 18 months in prison and fined $10,000, despite a plea by Hedges that he is destitute.

John "Jack" V. Pollock, senior executive vice president and chief operating officer of John Hanson Savings Bank, has been elected president of the Beltsville-based bank.

Thomas G. Labrecque, president and chief operating officer of Chase Manhattan Corp., was named to succeed Willard C. Butcher as chairman and chief executive, effective Oct. 1. Butcher will become chairman of the board's executive committee.

ODD LOTS

Eastern European markets are targeted by 35 percent of the largest U.S. manufacturing and service companies, according to a study of 500 executives by Opinion Research Corp.