… is from page 246 of Milton & Rose Friedman’s great 1980 book, Free To Choose:
A worker is protected from his employer by the existence of other employers for whom he can go to work. An employer is protected from exploitation by his employees by the existence of other workers whom he can hire. The consumer is protected from exploitation by a given seller by the existence of other sellers from who he can buy.
DBx: Milton Friedman was born on this date – July 31st – in 1912.