Consider the following two fabricated models of the world (competitive) market for wheat: I. =2,000+.052 =102()+2 =7500 =57.5 = II. =2,000+.052 =102()+2 =7500 =57.5+ .01(1,125) = a. Is Population an exogenous or endogenous variable in the two models? Explain. b. In which of the two models is Temperature an endogenous variable? Explain. c. Suppose that you have to discuss the effects of an exogenous increase in world population by 1 unit (it is actually 1 million) on the price of wheat. Which of the two models suggests a greater change in the equilibrium price of wheat? What is the intuition of your answer? Clearly explain without doing any calculation or using any graph.