After implementation of the Hausman procedure, we found robust evidence that asset per capita is exogenous. That is, for each goal satisfaction model, the null hypothesis that the coefficient on the residuals is zero could not be rejected (the residuals were derived from a regression with asset per capita as dependent variable and all exogenous variables including the instrumental variable as independent). Thus, we concluded that OLS estimation as presented in Table 6 can be used for the empirical analysis without the risk of obtaining biased and inconsistent estimates.