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Consider the market for com. Indicate whether each of the following events will cause a shift in the supply curve or a movement along the curve. If it will cause a shift, specify the direction, a. A drought hits corn-growing regions: | Leftward shift o v b. The government announces a new subsidy for biofuels made from corn: |Rightward shift of supply c. A global recession reduces the incomes of consumers in poor countries, who rely on com as a staple food (assuming corn is a normal good): Leftward shift o w d. A new hybrid variety of corn seed causes a 15 percent increase in the yield of com per acre: Rightward shift e. An advertising campaign by the beef producers association highlights the health benefits of corn-fed beef; Rightward shift v