Given two otherwise identical bonds, when interest rates rise, the price of Bond A dec
A.is callable.
B.has a lower coupon.
C.has a shorter maturity.
A.is callable.
B.has a lower coupon.
C.has a shorter maturity.
A.Right
B.Wrong
C.Doesn't say
The two tides in a given day______.
A.never vary in extent
B.may vary in extent
C.only vary in extent at the time of a new moon or a full moon
D.always vary in extent
证明下面的两个效用函数导出的商品X和Y的需求函数是相同的。
Show that the two utility functions given below generate identical demand functions for goods X and Y:
An individual consumes two goods, clothing and food. Given the information below,illustrate both the income - consumption curve and the Engel curve for clothing and food.
(71)
A.in which
B.that
C.which
D.on that
What do statistics do for science?
A.They get rid of intuition,
B.They make it more logical.
C.They reduce everything to numbers.
D.They give an idea of the amount of error involved.
It is easy to show that intelligence is to some extent something we are born with. The closer the blood relationship between two people, the closer they likely to be in intelligence. Thus if we take two unrelated people at random from the population, it is likely that their degree of intelligence will be completely different. If,on the other hand, we take two identical twins, they will very likely be as intelligent as each other. Relations like brothers and sisters, parents and children, usually have similar intelligence, and this clearly suggests that intelligence depends on birth.
Imagine now that we take two identical twins and put them in different environments. We might send one, for example, to a university and the other to a factory other the work is boring. We would soon find differences in intelligence developing, and this indicates the environment as well as birth plays a part. This conclusion is also suggested by the fact that people who live in close contact with each other, but who are not related at all are likely to have similar degree of intelligence.
The writer is in favor of the view that man' s intelligence is given to him ______ .
A.at birth
B.both at birth and through education
C.through education
D.neither at birth nor through education
The course is divided up into two parts: class time for learning laws and regulations and driving time to practice driving. Each student is required to drive a total of six hours. The students are divided up into groups of four. The students and the instructor go out driving for two hour blocks of time. Thus, each student gets half an hour driving time per outing. Drivers Ed cars are unlike other cars in which they have two sets of brakes, one on the driver's side and one on the other side where the instructor sits. Thus, if the student driver should run into difficulties the instructor can take over.
After a student has passed the driver's education course and reached the appropriate age to drive (this age differs in every state but in most cases the person must be 16 years old), he must take his driver's test. The person must pass all three tests in order to be given a driver's license. If the person does well in his or her driver's education class, he or she will pass the test with flying colors and get a driver's license.
In America, the driver's course mentioned above______.
A.is considered as part of the advanced education
B.is given to anyone wanting to get a driver's license
C.is carried on after students graduate from high school
D.is offered to all the students of Grade 2 in high school
It is easy to show that intelligence is to some extent something we are born with. The closer the blood relationship between two people is, the closer they are likely to be in intelligence. Thus if we take two unrelated people at random from the population, it is likely that their degree of intelligence will be completely different. If, on the other hand, we take two identical twins, they will very likely be as intelligent as each other. Relations like brothers and sisters, parents and children, usually have similar intelligence, and this clearly suggests that intelligence depend on birth.
Imagine now that we take two identical twins and put them in different environments. We might send one, for example, to a university and the other to a factory where the work is boring. We would soon find differences in their intelligence developing, and this indicates that environment as well as birth plays a part. This conclusion is also suggested by the fact that people who live in close contact with each other, but who are not related at all are likely to have similar degree of intelligence.
If a child is born with low intelligence, he can______.
A.not reach his intelligence in his life
B.go beyond his intelligence limits in rich surroundings
C.still become a genius if he should be given special education
D.become a genius
Dear professor,
Banks normally receive money from their customers in two distinct forms; on current account, and on deposit account. With a current account, a customer can issue personal cheques. No interest is paid by the bank on this type of account. With a deposit account, however, the customer undertakes (答应) to leave his money in the bank for a minimum specified period of time. Interest is paid on this money.
The bank in turn lends the deposited money to customers who need capital. This activity earns interest for the bank, and this interest is almost always at a higher rate than any interest which the bank pays to its depositors. In this way the bank makes its main profits.
We can say that the primary function of a bank today is to act as an intermediary (中间人) between depositors who wish to make interest on their savings, and borrowers who wish to obtain capital. The bank is a reservoir (水库) of loanable money, with streams of money flowing in and out. For this reason, economists and financiers often talk of money being" liquid" , or of the ' liquidity ' of money. Many small sums which might not otherwise be used as capital are made useful simply because the bank acts as a reservoir.
The system of banking rests upon a basis of trust. Innumerable acts of trust build up the system of which bankers, depositors and borrowers are part. They all agree to behave in certain predictable ways in relation to each other, and in relation to the rapid fluctuations of credit and debit. Consequently, business can be done and cheques can be written without visibly changing hands.
On______, the bank will pay interest.
A.the current account
B.personal cheques
C.the deposit account
D.both the current and deposit account
努力水平。工人选择他的收入减去努力以后的净工资w-e(努力的单位成本假设为1)最大化的努力水平。根据下列每种工资安排,确定努力水平和利润水平(收入减去支付的工资)。解释为什么这些不同的委托-代理关系产生不同的结果。
(1)对于e≥1, w=2;否则w=0。
(2)w=R/2。
(3)w=R-12.5。
A firm's short-run revenue is given by R= 10e-e2 , where e is the level of effort by a typical worker (all workers are assumed to be identical). A worker chooses his level of effort to maximize his wage net of effort w-e (the per-unit cost of effort is assumed to be 1). Determine the level of effort and the level of profit (revenue less wage paid) for each of the following wage arrangements.
Explain why these differing principal-agent relationships generate different outcomes.
a. w=2 for e≥1; otherwise w =0,
b. w= R/2.
c. w=R-12.5.