Section A 1. Answer all parts (a)-(c) of this question. (a) [20 marks] What are the main criticisms of the Harrod-Domar model? Discuss the criticisms in terms of the fundamental variables that relate to per capita income growth in the model. In addition, provide an applied example of a criticism that relates to population growth. How does the Solow growth model improve on the main criticisms of the Harrod-Domar model? (b) [20 marks] In the Solow growth model with technological progress, how does the idea of effective population relate to technology? How does the introduction of the idea of technological progress to the Solow growth model affect, if at all, predictions about growth in the long run? Explain. (c) [10 marks] In the Solow growth model with technological progress, which of the following two phenomena is better supported by the empirical evidence: unconditional convergence, or conditional convergence? Explain.