How do you tell if an economic policy being rolled out will work effectively or not? Economic policies cannot be tested in laboratories the way medicines or other sciences can be. Economists cannot conduct rigidly controlled clinical trials. Nor can they conjure up floods or famines in order to examine policy outcomes and effectiveness. Therefore, one of the things economists, especially labour economists, do to overcome the constraint is that they rely on what are called ‘natural experiments’. For this, economists analyse data that is naturally observable to infer the real-world outcomes of economic policies by establishing cause and effect.
This year’s Nobel for economics recognises the contribution of such analyses in making the subject more evidence-based. The award has been won by three economists, David Card, Joshua Angrist and Guido Imbens. Their work since the 1990s was a turning point and has completely reshaped the field of economics. The methods pioneered by these economists are now routinely used in many areas of economic research.
Card, who works at the University of California, Berkeley, conducted groundbreaking experiments, often in partnership with the late economist Alan Krueger, in the early 1990s in New Jersey in the fast-food sector that went on to show that an increase in the minimum wage did not always lead to job losses. These were counter-intuitive findings and this research ultimately went on to become empirical evidence used as a basis for the Biden administration’s legislation for a $15 minimum wage in the United States.
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هذه القصة مأخوذة من طبعة November 2021 من Wealth Insight.
ابدأ النسخة التجريبية المجانية من Magzter GOLD لمدة 7 أيام للوصول إلى آلاف القصص المتميزة المنسقة وأكثر من 9,000 مجلة وصحيفة.
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