A researcher was interested in explaining differences in average GDP per capita across countries and obtains the following two (partial) regression results. The dependent variable in both is the log of average GDP per capita. Constant Temperature Inverse distance to Coast Log(oil production per capita) Years of education Log(population) Institutional Quality Expropriation Risk Trust in Others Log(number of ethnic groups) Observations Adjusted R-sq Coefficient 6.3251 -0.0914 4.4768 1.2192 107 0.50 Standard Error 0.4598 0.0100 0.5266 0.1985 Coefficient 3.8201 -0.0171 1.6460 0.6642 0.1522 0.0909 0.1227 0.2399 -1.0995 -0.1180 35 0.79 Standard Error 2.1565 0.0171 0.7154 0.2352 0.0364 0.1051 0.2804 0.1064 0.7480 0.1378 What do these two regressions tell us about differences in average GDP? 50 marks]