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Economist Paul Krugman wrote in 2007 that while free trade among high-wage countries is viewed as win-win , free trade with low-wage countries is win-lose for many employees who find their jobs offshored or with stagnating wages .
 Paul Krugman
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Paul Krugman