【单选题】The price elasticity of demand for cigarettes is 0.4. If government wants to reduce smoking by 10 percent, by how much should it raise the price of cigarettes by imposing a tax? (香烟需求价格弹性为0.4。如果政府想把吸...
【简答题】(This problem is challenging.) Suppose that an individual owed no taxes on the first $10,000 she earned and 15 percent of any income she earned over $10,000. (This is a simplified version of the actua...