In economics we learn that the amount of money and the level of interest rates influence how firms invest and how households spend. Myrdal focused on the “time lag” between planned saving and planned investment and argued that this gap triggers business cycles. Hayek analyzed how excessively low interest rates set by a central bank distort the allocation of resources and eventually cause recessions. Although their methods differ, both conclude that monetary policy can shake the whole economy. Myrdal coined the term “circular cumulative causation” to describe how economic, social and institutional forces reinforce each other. Hayek introduced the idea of “dispersed knowledge,” explaining that market prices act as carriers of information. These insights are still cited when governments fight inflation, design social programs, or debate the proper roles of free markets and the state. In other words, their work extends far beyond academic theory and helps shape the rules of society.

Gunnar Myrdal, a leading figure of the Stockholm school, reinterpreted monetary theory in a dynamic and expectations-based framework. In “Monetary Equilibrium” he introduced the ex-ante/ex-post distinction and argued that discrepancies between planned saving and planned investment generate business cycles through price-income adjustments. In “Asian Drama” he analyzed how income inequality and institutional differences affect development and advocated policy intervention through the concept of circular cumulative causation. Friedrich A. von Hayek, representing the Austrian school, developed a theory in which credit expansion distorts the capital structure and triggers cycles. In “Prices and Production” and “The Pure Theory of Capital” he showed that when the market rate of interest diverges from the natural rate, over-investment arises and recession becomes inevitable. His 1945 essay “The Use of Knowledge in Society” demonstrated that markets condense dispersed information into prices, forming a powerful critique of central planning. While both scholars stressed the transmission of monetary shocks, their policy conclusions contrast: Myrdal favored active social programs, whereas Hayek emphasized market self-regulation. They shared the conviction that economic phenomena cannot be separated from social and institutional factors, a point highlighted in the Nobel citation. Their ideas underpin modern New Keynesian, Austrian and development models. The stagflation of the 1970s renewed interest in their insights and led to the Nobel award.

Myrdal extended the Wicksellian cumulative process, building a monetary disequilibrium dynamics in which the S-I gap is closed through quantity rather than price adjustments. His ex-ante/ex-post framework formalized expectation-realization divergence decades before the rational expectations revolution. The concept of circular cumulative causation identified self-reinforcing loops among economic, social and institutional variables, foreshadowing complexity economics and path-dependence studies. Hayek reformulated the Austrian time-structure of production as a multi-period capital theory, using monetary distortions to explain the lengthening of the average production period during booms. His ABCT remains a staple reference in critiques of Taylor-rule-based monetary policy, grounded in the natural rate of interest concept. The proposition of dispersed knowledge and the informational role of prices influenced mechanism design theory and distributed algorithm research. Both scholars agreed that monetary shocks disturb relative prices and have real effects, yet they pursued contrasting policy scopes. The Nobel Committee valued their meta-theoretical contributions that bridged monetary cycle theory with institutional analysis, emphasizing interdisciplinarity. Their work anticipates current efforts to embed institutional extensions into DSGE macro-financial models and to provide micro foundations for institutional economics.