In this paper we explore the relationship between ethnic fractionalization and social capital. First, we test for time differences in the impact of ethnic fractionalization on social capital using U.S. data from 1990, 1997 and 2005. Subsequently we examine the data for evidence of the conflict,...

This paper examines through various channels the effects of CEO social network heterogeneity on firm value. We construct four measures of heterogeneity based on demographic attributes, intellectual backgrounds, professional experience, and geographical exposures of individuals in the CEO social...

Why do sudden and massive social, economic, and political changes occur when and where they do? Are there institutional preconditions that encourage such changes when present and discourage such changes when absent? In this paper, I employ a general model which suggests that massive equilibrium...

We model an assurance game played within a population with two types of individuals {short-sighted and foresighted}. Foresighted people have a lower discount rate than short sighted people. These phenotypes interact with each other. We define the persistent interaction of foresighted people with...

Group pressure is a powerful tool at terrorist groups' disposal to uphold its network. The paper presents a behavioral model that explains how the radical leadership sustains group unity by pressuring likely dissidents into conformity. It explains that dissenters face three options. The first is...

We present an analysis of the economic, political and social factors that underlay the Apollo program, one of the most exceptional and costly projects ever undertaken by the United States in peacetime that culminated in 1969 with the first human steps on the Moon. This study suggests that the...

In this paper we explore the relationship between ethnic fractionalization and social capital. First, we test for time differences in the impact of ethnic fractionalization on social capital using U.S. data from 1990, 1997 and 2005. Subsequently we examine the data for evidence of the conflict,...

This paper models the welfare consequences of social fragmentation arising from technological advance. We start from the premise that technological progress falls primarily on market-traded commodities rather than prosocial relationships, since the latter intrinsically require the expenditure of...

Banks are generally considered by most people to be utilities that allow for the transmission of value on a daily basis in modern society, but they also seem to create devastating events like credit crises by the manufacture of credit. How this power originated in human society is of interest....