The current research emphasis on institutions as key determinants of economic performance, rather than on resources and resource productivity, has uncovered important questions for further research. For example, if institutions are central to economic performance, then what explains observed...

Institutions either promote or constrain economic performance, but which parts of institutions advance or restrict performance, and why do economies sharing similar institutions sometimes perform differently? This paper is a modest attempt at addressing a small part of these questions. It...

Human capital plays an important role in the theory of economic growth, but it has been difficult to measure this abstract concept. We survey the psychological literature on cross-cultural IQ tests, and conclude that modern intelligence tests are well-suited for measuring an important form of a...

This paper decomposes the large regression residuals of income across 84 U.S. Native American economies (USNAEs) into Solow and Solow-like parts. Decomposition is accomplished algebraically. The calculations find a weak to negative correlation between income and Solow residuals, and a strong...

I show that in a conventional Ramsey model, between one-fourth and one- half of income differences across countries can be explained by a single factor: The steady-state effect of large, persistent differences in national average IQ on worker productivity. These differences in cognitive...

The years following the Second World War were those of the greatest economic growth that Europe had ever seen. If the countries of the Iberian Peninsula, neutral in the conflict and ruled by dictatorial regimes, enjoyed that growth and had participated in the convergence phenomenon, Ireland,...

The years following the Second World War were those of the greatest economic growth that Europe had ever seen. If the countries of the Iberian Peninsula, neutral in the conflict and ruled by dictatorial regimes, enjoyed that growth and had participated in the convergence phenomenon, Ireland,...

Shafer's evidence theory is a branch of the mathematics of uncertain reasoning that allows for novel possibilities to be conceived by a decision-maker. Many of its findings exhibit striking similarities with an alternative decision theory purported by Shackle in the 1950s, before expected...