Friedrich Hayek was an Austrian-British economist, philosopher and social thinker, who is considered one of the most influential economists in the 20th century, and is ''widely considered to be the father of neoliberalism''. He developed ideas on the price system, macroeconomic fluctuations, and the relation between money and business cycles. A former student of Ludwig von Mises and recipient of the 1974 Nobel Memorial Prize in Economics, Hayek developed an approach to economics from the Austrian school of economics, of which he was an ardent defender. He is renowned for his strongly critical ideas on socialism, in particular his strong advocacy of free-market capitalism.

Hayek's seminal work, The Road to Serfdom (1944), challenged the belief that all means of production should be state-owned as advocated by socialism and major prominent supporters of the welfare state. Challenging the idea of a centrally-planned economy, Hayek argued instead for the maintenance of competitive markets for the efficient coordination of human activities. He was also associated with the "Chicago Boys", a group of pro-economic liberal intellectuals from the University of Chicago known for their political involvement in the markets of Latin America and the ending of military dictatorships in the region.

In his book, ”The Fatal Conceit” (1988), Hayek argued that central planning not only impedes freedom and democracy, but also fails to deliver the quality of services promised by its advocates. He also thought that modern liberals had forgotten the spirit of 17th and 18th centuries liberals, which he was eager to revive. He wrote: "The great task which we hope to begin, is to look at the alternatives of our expanding welfare state and to determine how the values rather than the interests of one group in the society might be privileged over those of another."

Apart from his accomplishments in the field of economics, Hayek also had a great influence in the fields of politics and philosophy. His works on the nature of liberty, the rule of law, and the role of government, remain relevant to this day. His writings on government and politics emphasised the importance of checks and balances between different branches of government and the importance of judicial review. His work on philosophy, in particular on the topics of method and the theory of knowledge, had a great influence on subsequent generations of philosophers.

Hayek's thought is often seen as an attempt to reconcile libertarianism and liberalism, advocating for a middle way between the two extremes. His beliefs about the market and its impact on society are optimistic and progressive. He rejected the idea that government intervention was needed for the efficient functioning of a market economy. Instead, he argued for the reliance on price signals and the creative destruction of capitalism. His position has been widely accepted in many countries, and the theoretical framework that he developed has been widely adopted in economic policymaking.