To test a model of contagion--where individuals hear some bad news and communicate it to their acquaintances, who then pass it on, leading to a market panic--requires a knowledge of the information networks of participants, something hitherto unavailable. For two panics in the 1850s this paper...

The Irish Famine killed over a million people who would not have died otherwise. The nosologies published by the 1851 Irish census provide a rich source for the causes of death during these catastrophic years. This source is extremely rich and detailed, but also inaccurate and deficient to the...

This article compares the heights of 1,000 Irish and English men recruited for service in India by the East India Company in the late 1770s and early 1780s. The height data serves as a guide to determining the economic conditions of various regions in Ireland and England. Despite the law against...

This paper tests a smart money-noise trader model directly by comparing its predictions with the behavior of actual investors. It assumes that individual probability of being a noise trader is diminishing in income, high-income households are smart money, lower-income households are noise...

Looking at house price cycles across the OECD since 1970, we find a strong relationship between the size of the initial rise in price and its subsequent fall. Were this relationship to hold for Ireland, it would predict falls of real house prices of 40 to 60 per cent over a period of 8 to 9...

This paper analyzes the evolution of an economy where growth is driven by increased specialization caused by the geographical expansion of markets. It proves that such Smithian growth exhibits generic threshold behavior. Below a critical density of transport linkages, the economy is split into...

The power of the metaphor of contagion—that beliefs, actions, and strategies spread among economic agents like pathogens among biological organisms— causes it to recur in disparate areas of economics. This article focusses on four applications of contagion to economics: social influence or...

This paper considers the relationship between inequality and crime using data from urban counties. The behavior of property and violent crime are quite different. Inequality has no effect on property crime but a strong and robust impact on violent crime, with an elasticity above 0.5. By...