STOCKHOLM (AP) \u2014 A U.S.-based economist won the Nobel prize in economics Monday for pioneering research that transformed widely held ideas about the labor force, showing how an increase in the minimum wage doesn\u2019t hinder hiring and immigrants do not lower pay for native-born workers. Two others shared the award for creating a way to study these types of societal issues.<\/p>\n\n\n\n
Canadian-born David Card of the University of California, Berkeley, was awarded half of the prize for his research on how the\u00a0minimum wage,\u00a0immigration\u00a0and\u00a0education\u00a0affect the labor market.<\/p>\n\n\n\n
The other half was shared by Joshua Angrist from the Massachusetts Institute of Technology and Dutch-born Guido Imbens from Stanford University for their framework for studying issues that can\u2019t rely on traditional scientific methods.<\/p>\n\n\n\n
The Royal Swedish Academy of Sciences said the three have \u201ccompletely reshaped empirical work in the economic sciences.\u201d<\/p>\n\n\n\n
Together, the three helped rapidly expand the use of \u201cnatural experiments,\u201d or studies based on the observation of real-world data. Such research made economics more applicable to everyday life, provided policymakers with actual evidence on the outcomes of policies, and in time spawned a more popular approach to economics epitomized by the blockbuster bestseller \u201cFreakonomics,\u201d by Stephen Dubner and Steven Levitt.<\/p>\n\n\n\n
In a study published in 1993, Card looked at what happened to jobs at fast-food restaurants Burger King, KFC, Wendy\u2019s and Roy Rogers when New Jersey raised its minimum wage from $4.25 to $5.05, using restaurants in bordering eastern Pennsylvania as the control \u2014 or comparison \u2014 group. Contrary to previous studies, he and his research partner Alan Krueger, who died in 2019, found that an increase in the minimum wage had no effect on the number of employees.<\/p>\n\n\n\n
Card\u2019s minimum wage research fundamentally altered economists\u2019 views of such policies. As noted by the Economist magazine, in 1992 a survey of the American Economic Association\u2019s members found that 79% agreed that a minimum wage law increased unemployment among younger and lower-skilled workers. Those views were largely based on traditional economic notions of supply and demand: If you raise the price of something, you get less of it.<\/p>\n\n\n\n
By 2000, however, just 46% of the AEA\u2019s members said minimum wage laws increase unemployment, largely because of Card and Krueger\u2019s research.<\/p>\n\n\n\n
Their findings sparked interest in further research into why a higher minimum wouldn\u2019t reduce employment. One conclusion was that companies are able to pass on the cost of higher wages to customers by raising prices. In other cases, if a company is a major employer in a particular area, it may be able to keep wages particularly low, so that it could afford to pay a higher minimum, when required to do so, without cutting jobs. The higher pay would also attract more applicants, boosting labor supply.<\/p>\n\n\n\n
\u201cThat really surprising evidence on the impact of the minimum wage has shaken up the field at a very fundamental level,\u201d said Arindrajit Dube, an economics professor at the University of Massachusetts, Amherst, who has duplicated and broadened Card and Krueger\u2019s research. \u201cAnd so for that reason, and all the following research that their work ignited, this is a richly deserved award.\u201d<\/p>\n\n\n\n
Krueger would almost certainly have shared in the award, Dube said, but the economics Nobel isn\u2019t awarded posthumously.<\/p>\n\n\n\n
Card also found that an influx of immigrants into a city doesn\u2019t cost native workers jobs or lower their earnings, though earlier immigrants can be negatively affected.<\/p>\n\n\n\n
Card studied the labor market in Miami in the wake of Cuba\u2019s sudden decision to let people emigrate in 1980, leading 125,000 people to leave in what became known as the Mariel Boatlift. It resulted in a 7% increase in the city\u2019s workforce. By comparing the evolution of wages and employment in four other cities, Card discovered\u00a0no negative effects\u00a0for Miami residents with low levels of education. Follow-up work showed that increased immigration can have a positive impact on income for people born in the country.<\/p>\n\n\n\n
Angrist and Imbens won their half of the award for working out the methodological issues that allow economists to draw solid conclusions about cause and effect even where they cannot carry out studies according to strict scientific methods.<\/p>\n\n\n\n
Card\u2019s work on the minimum wage is one of the most well-known natural experiments in economics. The problem with such experiments is that it can sometimes be difficult to isolate cause and effect. For example, if you want to figure out whether an extra year of education will increase a person\u2019s income, you can simply compare the incomes of adults with one more year of schooling to those without.<\/p>\n\n\n\n
Yet there are many other factors that may determine whether those who got an extra year of schooling are able to make more money. Perhaps they are harder workers or more diligent and would have made more money than those without the extra year even if they did not stay in school. These kinds of issues cause economists and other social science researchers to say \u201ccorrelation doesn\u2019t prove causation.\u201d<\/p>\n\n\n\n
Imbens and Angrist, however, figured out ways to isolate the effects of things like an extra year of school. Their methods enabled researchers to draw much clearer conclusions about cause and effect, even if they are unable to control who gets things like extra education, the way scientists in a lab can control their experiments.<\/p>\n\n\n\n
\u201cI was just absolutely stunned then to get a telephone call,\u201d Imbens said from his home in Massachusetts. \u201cAnd then I was just absolutely thrilled to hear the news … that I got to share this with Josh Angrist and and David Card,\u201d whom he called \u201cboth very good friends of mine.\u201d Imbens said Angrist was best man at his wedding.<\/p>\n\n\n\n
Angrist said, \u201cOf course I\u2019m thrilled. … It\u2019s an honor to get the Nobel Prize and especially to be recognized with my winners, you know, Guido Imbens and Dave Card, who are wonderful scholars and I couldn\u2019t be happier.\u201d<\/p>\n\n\n\n
Krueger, who worked with Card on some of the research that won the Nobel, died in 2019 at 58. He taught at Princeton for three decades and was chief Labor Department economist under then-President Bill Clinton. He served in the Treasury Department under then-President Barack Obama, then as Obama\u2019s chairman of the Council of Economic Advisers. Nobel prizes are not awarded posthumously.<\/p>\n\n\n\n
The award comes with a gold medal and 10 million Swedish kronor (over $1.14 million).<\/p>\n\n\n\n
Unlike\u00a0the other Nobel prizes, the economics award wasn\u2019t established in the will of Alfred Nobel but by the Swedish central bank in his memory in 1968, with the first winner selected a year later. It is the last prize announced each year.<\/p>\n\n\n\n
\u2014-<\/p>\n\n\n\n
Rugaber reported from Washington and McHugh reported from Frankfurt, Germany.<\/p>\n","protected":false},"excerpt":{"rendered":"
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