The key role of the WTO is to

During the Obama administration, the development of low-cost batteries for electric cars received large amounts of federal funding in terms of subsidies. Meanwhile, American households gave a higher priority towards minimizing their environmental impact. Consider the market for zero-emissions electric vehicles where there is an upward-sloping supply curve and a downward-sloping demand curve. Which direction will demand and supply shift?

A. Demand will shift right and supply will shift length. B. Demand will shift left and supply will shift right. C. Both curves will shift left. D. Both curves will shift right.

The elasticity approach to measuring the sensitivity of quantity demanded to changes in price differs from using the slope because the elasticity approach calculates the ratio of the

a. absolute change in price to the absolute change in quantity demanded b. absolute change in quantity demanded to the percentage change in price c. absolute change in quantity demanded to the percentage change in price d. percentage change in quantity demanded to the percentage change in price e. average change in price to the average change in quantity demanded