• Guido Imbens is a Dutch-American economist who was awarded the Nobel Memorial Prize in Economic Sciences in 2021. He shared the honor with David Card and Joshua Angrist.
• The Achievement: He was recognized for his methodological contributions to the analysis of causal relationships.
• The Impact: His work, alongside Angrist, revolutionized how social scientists use "natural experiments" (real-life situations) to determine cause and effect, such as how an extra year of schooling affects future earnings.
