This paper provides the first assessment of the contribution of idiosyncratic shocks to aggregate fluctuations in an emerging market using confidential data on the universe of Chilean firms. We find that idiosyncratic shocks account for more than 40 percent of the volatility of aggregate sales. Although quite large, this contribution is smaller than documented in previous studies based on advanced economies, despite a higher degree of market concentration in Chile.We show that this finding is explained by larger firms being less volatile and by weaker propagation effects across Chilean firms.
An increasing number of tropical timber producing nations have enacted bans on export of logs. Proponents argue that a log export ban is a second-best policy tool for addressing environmental externalities; it also creates more jobs and improves scale efficiencies domestically. Theoretical arguments suggest that log export bans are largely incapable of achieving their objectives. However, little quantitative evidence exists. The authors maintain that eliminating log export bans in Costa Rica could generate economic gains as high as $14 million annually in addition to the environmental benefits.