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Purchasing managers, buyers, and agents must keep up on industry trends and be able to negotiate the best deals on products and services for their organizations. Plenty of things can go wrong along the way, however.
"Goods may arrive late, or someone finds them at a better price or there's a problem with quality," said Harry Hough, who was a purchasing agent with a Fortune 500 company before becoming president of the American Purchasing Society.
"Buyers get criticized from all sides," he said. "They have to have thick skin."
Purchasing agents at big corporations are responsible for spending millions of dollars a year and tend to be compensated well, but the average buyer earns a more modest paycheck, a median of just under $50,000 a year.