MARKETING

Ad Spending Drops Again: Spending by the nation’s 100 leading national advertisers dropped 3.9% to $33.7 billion in 1991, reports the magazine Advertising Age. It marks only the second year-to-year decline in the 37 years the trade magazine has tracked the nation’s leading advertisers. The only other decline--of 0.5%--occurred in the 1970 economic slowdown. In the Ad Age survey, Procter & Gamble Co., with 1991 ad spending of $2.15 billion, edged out Philip Morris as the nation’s largest advertiser for the second consecutive year.