Cost efficiency decreased slightly between the 1980s and 1990s, and large banks showed a sizable decline in profit efficiency. Total predicted production costs increased over both the 1980s and 1990s, reflecting cost productivity declines. Changes in business conditions led to cost declines over both periods. Total predicted profits increased in the 1980s and 1990s, with the entire change reflecting increased profit productivity. Changing business conditions led to small declines in profits.

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