第1题
小麦的生产函数为q=100K0.8L0.2。
(1)开始时资本投入为4单位,劳动投入为49单位,请证明劳动和资本的边际产量都下降。
(2)该生产函数显示的规模报酬是递增、递减,还是不变?
In Example 6.3,wheat is produced according to the production function g= 100(K0.8L0.2).
a. Beginning with a capital input of4 and a labor input of 49,show that the marginal product of labor and the marginal product of capital are both decreasing.
b. Does this production function exhibit increasing, decreasing, or constant returns to scale?
第2题
(1)计算该生产函数下劳动的平均产量和边际产量;
(2)该生产函数是否显示了劳动的边际报酬递减,请解释;
(3)请直观地解释劳动边际产量为负的原因?
Suppose a chair manufacturer is producing in the short run (with its existing plant and equipment). The manufacturer has observed the fallowing levels of production corresponding to different numbers of workers:
a. Calculable the marginal and average product of labor for this production function.
b. Does this production function exhibit diminishing returns to labor? Explain.
e. Explain intuitively what might cause the marginal product of labor to become negative,
第3题
求下面函数的返回值(微软)
int func(x)
{
int countx = 0;
while(x)
{
countx ++;
x = x&(x-1);
}
return countx;
}
第4题
求函数返回值,输入x=9999;
int func (x )
{
int countx = 0;
while (x )
{
countx ++;
x = x&(x-1);
}
return countx;
}
结果呢?
第6题
第7题
字符指针、浮点数指针、以及函数指针这三种
类型的变量哪个占用的内存最大?为什么?
类ClassB 从ClassA 派生,那么ClassA *a =
new ClassB(…); 试问该表达是否合法?为什么?
如 果ClassA 中定义并实现虚函数int
func(void),ClassB中也实现该函数,那么上述变量
a->func()将调用哪个类里面的函数?如果int
func(void)不是虚函数,情况又如何?为什么?
char **p, a[16][8]; 问:p=a是否会导致程序
在以后出现问题?为什么?
如下所述的if else 和switch 语句哪个的效率
高?为什么?
在同一个进程中,一个模块是否可以通过指针
操作破坏其它模块的内存,为什么?
应用程序在运行时的内存包括代码区和数据
区,其中数据区又包括哪些部分?
第8题
第9题
一家企业的固定生产成本为5000美元,边际生产成本为常数,为500美元/单位产品。
(1)企业的总成本函数是什么?平均成本呢?
(2)如果企业想使其平均总成本最低,它应该选择非常大的产量还是比较小的产量?解释你的结论。
A firm has a fixed production cost of $ 5000 and a constant marginal cost of production of S 500 per unit produced.
a. What is the firm' s total cost function? Average cost?
b. If the firm wanted to minimize the average total cost,would it choose to be very large or very small? Explain.
第10题
(1)找出利润最大化时的L数量。
(2)找出利润最大化时的q数量。
(3)最大化利润是多少?
(4)假设现在每单位的产出要征税30美元,而每小时的劳动能得到15美元的补助。并且假设企业是价格接受者,所以产品价格保持150美元不变。找出新的利润最大化的L、q和利润。
(5)假设企业要为利润支付20%的税额。找出新的利润最大化的L、q和利润。
A firm uses a single input, labor, to produce output q according to the production function q =8√L. The commodity sells for S 150 per unit and the wage rule is $ 75 per hour.
a. Find the profit - maximizing quantity of L.
b. Find the profit - maximizing quantity of q.
c. What is the maximum profit?
d. Suppose now that the firm is taxed $ 30 per unit of output and that the wage rate is subsidized at a rate of $ 15 per hour. Assume that the firm is a price taker, so the price of the product remains at $ 150. Find the new profit - maximizing levels of L, q, and profit.
e. Now suppose that the firm is required to pay a 20 percent lax on its profit. Find the new profit - maximizing levels of L, q, and profit.