Republican presidential candidate Pat Buchanan unveiled a broad proposal Thursday to reform the political process, describing it as an "across-the- board assault on the money power that controls this city."

Mr. Buchanan said his proposals are designed in part to attract supporters of Texas billionaire Ross Perot back to the Republican Party. Mr. Perot won many independent votes in the 1992 presidential election by attacking the culture of corporate lobbying in Washington.At a briefing at the National Press Club, Mr. Buchanan urged Congress to pass legislation allowing states to impose term limits on lawmakers. He proposed banning congressional pensions and said members of Congress should not be allowed to accept gifts worth more than $50 from a single source.

His proposals also would limit donations to House and Senate candidates to $1,000 a person for primaries and general elections. House candidates would not be allowed to accept donations from outside their district and Senate candidates from outside their state.

Members of a Buchanan administration, he said, will take an oath pledging to never work for a foreign institution or corporation.

Meanwhile, Clinton administration officials and business analysts gathered down the hall to discuss corporate downsizing, an issue Mr. Buchanan has been focusing on in his campaign.

Since the economic recovery that began in 1991, said Eric Greenberg of the American Management Association, nearly 50 percent of the major U.S. companies surveyed by his group reported job eliminations averaging 9 percent to 10 percent of their work force.

In 1994, he said, over 500,000 workers lost jobs in corporate downsizings; by the third quarter of 1995, that number had reached 300,000.

Downsizing is no longer a "child of recession" but has become "an ongoing corporate activity carried out without regard to economic activity or companies' bottom line," he said.

Labor Secretary Robert Reich said fears of layoffs have "had a chilling effect on the American work force."

"This whole issue of jobs and downsizing will be very central to the presidential campaign," Mr. Reich said in a brief interview after his talk.