2024 Nobel Memorial Prize in Economic Sciences
Reason for Award
for studies of how institutions are formed and affect prosperity
Laureates
Turkey, 
United States of America
United Kingdom of Great Britain and Northern Ireland, United States of America
United Kingdom of Great Britain and Northern Ireland
Explanation
Our everyday life is guided by rules and systems called “institutions.” Going to school safely or being able to use money in shops are examples of such rules. Mr. Acemoglu and his colleagues studied how these rules can make a country rich or poor. Long ago, Europeans set up colonies around the world and introduced different kinds of institutions. Because of those differences, people living in the same region today can have very different living standards. By using historical records and statistics, the researchers showed that countries with “good” institutions allow everyone to work productively, while countries with weak institutions stay poor.
Related Keywords
institutions
Institutions are the formal and informal rules plus enforcement mechanisms that organize repeated social interactions. Courts that secure property rights, tax systems, and electoral procedures are classic examples. Strong institutions lower transaction costs and foster investment and innovation. Weak institutions invite corruption and violence, stifling growth. Because of path dependence, institutions often persist across generations once they take root. AJR’s research rigorously demonstrated that institutional quality is a primary determinant of economic performance.
inclusive institutions
Inclusive institutions are rule systems that grant broad segments of society access to economic gains and political participation. They feature strong property-right enforcement, open markets, universal education, and representative democracy. Such institutions create incentives to invest, innovate, and start businesses, boosting productivity. Historically, they evolved in settler colonies and countries that underwent civic revolutions. AJR showed that nations with inclusive institutions have statistically higher GDP per capita. They also provide the foundation for sustained technological progress and social stability.
extractive institutions
Extractive institutions are rule systems designed so that a narrow elite can monopolize resources at the expense of the majority. Forced-labor regimes, plantation systems, and corrupt bureaucracies under military dictatorships are typical examples. Property rights are insecure, investment incentives are weak, and productivity stagnates. Public spending on education and health is minimal, so human capital fails to accumulate. AJR documented that high-mortality colonies tended to adopt extractive institutions. These arrangements became a persistent source of poverty and political instability.
colonial origins hypothesis
The colonial origins hypothesis argues that differences in institutions implanted during European colonization are a primary source of today’s income disparities. Colonial powers adopted different governance strategies depending on settler numbers, indigenous population density, and disease environments. Colonies that received inclusive institutions became prosperous, while those left with extractive systems remained poor. AJR validated this hypothesis with instrumental-variable techniques, mapping the causal channel from institutions to income. The “reversal of fortune” phenomenon, unexplained by geography or culture alone, fits neatly within this framework. The hypothesis provides important guidance for contemporary development policy.
settler mortality
Settler mortality measures the share of European colonists who died while living in a colony, based on historical military and medical records. Tropical diseases such as malaria and yellow fever caused wide variation in these rates. AJR used settler mortality as an instrument, treating it as an exogenous factor influencing institutional choice. High-mortality regions attracted few settlers, increasing the likelihood of extractive institutions imposed by small elites. This strategy solved the identification problem in estimating the causal effect of institutions on income. Settler mortality thus exemplifies how the natural environment can indirectly shape institutional outcomes.
reversal of fortune
The reversal of fortune describes the striking fact that areas relatively rich around 1500 are often poor today, while formerly poor regions are now wealthy. AJR quantified this reversal using urbanization rates and population density as proxies for pre-industrial prosperity. Frontier colonies that adopted inclusive institutions surged ahead after the Industrial Revolution, overtaking historically advanced regions. Conversely, areas that retained extractive systems fell behind. Geography and culture alone cannot explain this historical U-turn, underscoring the role of institutions. The reversal remains a central empirical puzzle in development economics.
commitment problem
The commitment problem arises when parties cannot credibly promise to carry out future actions, preventing mutually beneficial agreements. In countries where elites hold power, they have incentives to renege on economic reforms once social unrest subsides. Knowing this, the masses demand political rights rather than mere promises of redistribution. AJR’s theoretical model shows how this mutual distrust, combined with the threat of revolution, can drive transitions to democracy. Although widely applied in corporate finance and international treaties, the commitment problem is central to analyses of institutional change. It implies that successful reform requires credible enforcement mechanisms and sometimes formal power transfers.
economic growth
Economic growth is the sustained increase in a country’s production of goods and services. Traditional models emphasize capital accumulation and technological progress, but AJR showed that institutions underpin these factors. Inclusive institutions align incentives for investment, education, and innovation, enabling long-run growth. Under extractive systems, capital flight and delayed technology adoption hamper expansion. The institutional perspective helps explain cross-country growth gaps that earlier models could not. For policymakers, it demonstrates that legal and political reforms can be as crucial as macroeconomic policy.