income. The model is estimated using a large German panel data set. …

The literature that tests for U-shaped relationships using panel data, such as those between pollution and income or … subjective choices due to a lack of identification. We apply our methodology to the pollution-income relationship of both CO2 …- and SO2-emissions. Interestingly, our approach yields estimates of both income (scale) and time (composition and …

the compensating income variation of social capital. We find differences in social capital when we differentiate according … income generally has a statistically significant effect. We find a significant effect of social capital on …?life?satisfaction. Consequently, the compensating income variation of social capital is substantial. …

generates a higher income, but only for entrepreneurs: This finding supports Lazear's Jack-of-all-Trades theory. …