The Unassuming Economist

Services are gaining newfound respect as the basis of modern global trade

In 1988, General Motors launched an ad campaign with a memorable jingle: “This is not your father’s Oldsmobile. This is the new generation of Olds.” The car’s image had not kept up with its transformation from a staid cruiser to something far more high-tech and stylish. The service sector could use such an ad campaign: it too needs an image makeover to match its transformation over the past decade. The Oldsmobile didn’t make it, but the service sector is here to stay—it already accounts for 60 percent of global employment.

Prejudice against the service sector runs deep. Some regard it as the useless sibling of other sectors of the economy such as agriculture and manufacturing. In The Wealth of Nations, Adam Smith questioned the social value provided by “churchmen, lawyers, physicians, men of letters of all kinds, players, buffoons, musicians, opera-singers, opera-dancers, etc.” To this day, as economist Christina Romer lamented in a New York Times op-ed, there is a “feeling that it is better to produce ‘real things’ than services” (Romer, 2012).

Others have treated services not as socially useless but as somewhat challenged. A famous 1967 paper by U.S. economist William Baumol fostered the view that services is a sector resistant to improvements in productivity. He noted that the provision of services—such as restaurant meals, haircuts, and medical checkups—required face-to-face transactions. These did not lend themselves easily to standardization and trade, the source of growth in productivity and hence income.

This image is no longer a fair representation of the service sector. Service occupations today include a few that even Smith might have considered useful. Trade in services has increased within and across national borders. Many services are now high tech and pay high wages. And increasingly, manufacturing and services, far from being competing siblings, are part of a joint family of value creation. Services are ever more critical to the successful operation of manufacturing, debunking debate over countries’ need to choose between the two sectors.

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The Science Magazine has dedicated a special issue on the science of inequality, which features articles from the following authors: H. Pringle, A. Deaton, E. Pennisi, M. Ravallion, E. Marshall, T. Piketty and E. Saez, and others. 

“This important and fascinating book surely ranks among the most influential economic analysis of recent decades. Much of the debate over inequality in recent years is the result of the work of Thomas Piketty and his fellow researchers.­

Minimum wages are set to increase in China under the country’s latest five-year plan. This vox column documents that past increases led to lower employment. However, the impact is heterogeneous. Firms with high average wages or large profit margins actually increase employment, while those with low average wages or small profit margins downsize.

Do minimum wages lower or raise employment in China? Yes. That’s the answer from the paper my co-author Yi Huang presented at the University of Zurich’s Macro-Finance-Labor Seminar.