搜狗做题网一道曼昆管理经济学第三章关于需求价格弹性的课后题,
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一道曼昆管理经济学第三章关于需求价格弹性的课后题,
The Sydney Transportation Company operates an urban bus system in New South Wales, Australia. Economic analysis performed by the firm indicates that two major factors influence the demand for its services: fare levels and downtown parking rates. Table 1presents information available from 2005 operations. Forecasts of future fares and hourly parking rates are presented in Table 2.
Sydney’s economists supplied the following information so that the firm can estimate ridership. Based on past experience, the coefficient of cross elasticity between bus ridership and downtown parking rates is estimated at 0.2, given a fare of $1.00 per round trip. This is not expected to change for a fare increase to $1.25.
The price elasticity of demand is currently estimated at −1.1, given hourly parking rates of $1.50. It is estimated, however, that the price elasticity will change to −1.2 when parking rates increase to $2.50. Using these data, estimate the average daily ridership for 2006 and2007.
The Sydney Transportation Company operates an urban bus system in New South Wales, Australia. Economic analysis performed by the firm indicates that two major factors influence the demand for its services: fare levels and downtown parking rates. Table 1presents information available from 2005 operations. Forecasts of future fares and hourly parking rates are presented in Table 2.
Sydney’s economists supplied the following information so that the firm can estimate ridership. Based on past experience, the coefficient of cross elasticity between bus ridership and downtown parking rates is estimated at 0.2, given a fare of $1.00 per round trip. This is not expected to change for a fare increase to $1.25.
The price elasticity of demand is currently estimated at −1.1, given hourly parking rates of $1.50. It is estimated, however, that the price elasticity will change to −1.2 when parking rates increase to $2.50. Using these data, estimate the average daily ridership for 2006 and2007.
fare的变化对人数的影响是价格弹性,rates的变化对人数的影响是交叉价格弹性
2006年的人数
2006与2005相比,fare没变,rates变了,并且fare=1,可以用交叉价格弹性,交叉价格弹性为0.2,2005和2006年的rates的价格分别是1.5和2.5,2005年的人数为5000,根据交叉价格弹性的公式即可计算出2006年的人数
2007年的人数
2007与2006年比 ,rates没变,fare变了,可以用价格弹性,当rates=2.5时的价格弹性是-1.2,而价格从1美元变到1.25美元,2006年的人数已算出,根据价格弹性的公式即可算出2007年的人数.
2006年的人数
2006与2005相比,fare没变,rates变了,并且fare=1,可以用交叉价格弹性,交叉价格弹性为0.2,2005和2006年的rates的价格分别是1.5和2.5,2005年的人数为5000,根据交叉价格弹性的公式即可计算出2006年的人数
2007年的人数
2007与2006年比 ,rates没变,fare变了,可以用价格弹性,当rates=2.5时的价格弹性是-1.2,而价格从1美元变到1.25美元,2006年的人数已算出,根据价格弹性的公式即可算出2007年的人数.