(a) From the theory of Galor and Weil (2000), what are the major economic forces that drove the world economy moving from the Malthusian stagnation toward the modern growth era? Explain. [6 marks] (b) In 1999, The United Nation (UN) called for an enhancement in domestic and international support for family planning services in Africa, UN argued that over 150 million couples in Africa still had an unmet need for contraception and that the support for contraception provision will yield the dual benefits of betterliving conditions and brighter job prospects in the next century". A global system was since established that delivered abundant contraceptive supplies, Including condoms, to African countries and ensured the availability and choice of contraceptives year-round, However, population growth was not significantly slowed down in most recipient countries and economic growth was not boosted: Use the Quantity-Quality Tradeoff theory to explain why this was the case. [B marks]