Part B. Key Concepts [5 points each, 30 points total] In a brief paragraph (5 sentences max), dene the following concepts [3 points] and provide an illustrative example for each based on topics or studies we discussed in class [2 points]. 1. Define reverse causality and provide an illustrative example. 2. Define conditional convergence and how it differs from unconditional convergence 3. Define a natural experiment and provide an example. 4. Briey dene the state prize theory of conict and provide an empirical example 'om a study we discussed in class. 5. Define Advanced Market Commitments and provide an example. 6. Define Endogenous program placement and provide an example. Part C. True or False [5 points each, 30 points total] State whether the statement is true or false [2 points], and briefly explain why (4 sentences max) [3 points]. For true statements, do not simply reiterate the statement; be sure to explain the underlying reason(s) Why. 1. According to Solow, in the short run, if a country with positive population growth saves a positive amount from its income, and there is no depreciation of capital and no technological change, then the amount of capital per worker must increase. 2. China's one -child policy led to a permanent reduction in fertility and, hence, population growth. According to the Solow model, this should lead to an increase in income per worker in the long run. 3. According to the Lewis model, structural transformation can occur with no loss of output if the marginal product of labor (MPL) in the agricultural sector is greater than zero. 4. According to Malthus' view, po pulation growth will generate increases in per capita income because having more workers will increase the earth's carrying capacity 5. The number of "missing women" in a given country is equal to the difference between the number of boys and girls under the age of 5. 6. Taking a random sample of people from a country's population and then comparing the health of high and low income couples within the random sample will give an unbiased, causal estimate of the effect of income on health