(d) Create a subsample of countries and check the convergence hypothesis for this sub-group countries? (Hint: you can create sub-group in different ways, for example, top and bottom 30 countries; using regional group, (e) Why does economist expect income convergence between developed and developing countries? Based on your findings of question c and d, why some countries able to convergence but others could not? What's factors would you look for explanation? C H! ENTIN C d the