Box 3.1 How different are factor endowments?

There are obvious differences in factor endowments across countries, but documenting them in a systematic way is difficult. One data set compiled by Daniel Trefler for 1982 provides the basis for the endowment shares shown in Table 3.1. Each entry shows a country’s percentage share of the endowment of a given factor of production, where the calculation is based on the total endowment of the factor observed in a sample of 33 countries.