This paper investigates the causal influence of export concentration on measures of aggregate volatility …. Geographically disadvantaged countries often have a concentrated export structure which makes them more vulnerable to external shocks …. Identifying causal effects of export concentration on volatility faces severe problems of endogeneity, however. Based on a gravity …

It has been suggested that countries which export in especially risky sectors will experience higher output volatility …. This paper develops a measure of the riskiness of a country's pattern of export specialization, and illustrates its … countries whose comparative advantage in the risky sectors is not too strong will diversify their export structure to insure …