There are two parts in our note. The first highlights Leo's contribution that earned him the Nobel prize in economics, from a personal point of view. The second discusses further questions that can naturally be addressed using Leo's conceptual framework

In light of the interest in axiomatic models of decision making in recent years, one is led to ask, in what ways do axiomatic derivations advance positive economics? If economists are interested in predicting how people behave, without a pretense to change individual decision making, how can...

The economic history of the United States is riddled with financial crises and banking panics. During the nineteenth-century, eight major such episodes occurred. In the period following World War II, some believed that these crises would no longer happen, and that the U.S. had reached a time of...

The examination of U.S. crises reveals that the current financial crisis follows past patterns. An investment bubble creates excess demand for new financing instruments. During the railroad bubbles of the nineteenth century loans were issued at a pace higher than many companies could pay back....

Spain has experienced many financial crises through its history. These financial crises have varied origins. However, they do have common threads. The current recession and subsequent debt crisis follow the same pattern. The fiscal and monetary policies of the Spanish government have played a...

The Sultanate of Oman has a diversified economy, unlike many of its neighboring nations that rely almost entirely on oil revenues. Natural gas and several non-energy business sectors, such as tourism, fishing, light manufacturing, and agriculture are expanding rapidly. The Omani economy is one...

The State of Qatar is driven mainly by hydrocarbon revenues, which are estimated to support this tiny country for hundreds of years. The Qatari economy is becoming diversified with industries such as manufacturing, banking, social services, and tourism. Additionally, government financed health...

Notwithstanding its impressive contributions to empirical financial economics, there remains a significant gap in the volatility literature, namely its relative neglect of the connection between macroeconomic fundamentals and asset return volatility. We progress by analyzing a broad...

This paper analyzes the causes and implications of recent financial crises. Financial crises in general lead to changes in both theory and practice of economics. The paper takes an historical overview. The global consensus of economic theory during the 20th century is discussed. The paper...

This paper shows how to build algorithms that use graphics processing units (GPUs) installed in most modern computers to solve dynamic equilibrium models in economics. In particular, we rely on the compute uni.ed device architecture (CUDA) of NVIDIA GPUs. We illustrate the power of the approach...