Translate the following sentence into Chinese.
There's a natural ceiling on prices, but it varies from one buyer to the next, depending on how much each can afford to pay and how badly he wants to buy.
Price becomes the guidepost, telling producers what they can expect to sell at a price that more than covers their costs.
Analog computers, on the other hand, usually process continuous information.
To explain this difference, let us consider two devices which handle information in a manner similar to the two types of computers.
Translate the following sentence into Chinese. A turnstile, which has a counter attached to it, can help to explain the way a digital computer works.
A low price will discourage production, perhaps drive the high-cost producers out of business or force them to make something else.
This is why the prices of fresh fruits and vegetables normally drop during the summer months when such produce is in abundance.
A producer will be forced to sell at a price not far above costs in order to keep from being stuck with a lot of unmarketable supplies.
To be offered a "gift" of one penny is like being invited to dinner and offered one single pea (tastily cooked), and nothing else.
Still, people say, one has to have washing powder (or whatever) and one might as well buy it a penny cheaper.
It involves a shopper deciding what to buy in the supermarket or a manufacturer deciding what line of goods to produce.
The same problem of matching limited resources with seemingly endless demands confronts businesses and public agencies.
Businesses will be able to raise prices, their profits will increase and they will invest in new equipment to increase output.
Other firms may be attracted by the prospects of good profits to produce the scarce item, thus adding new competition.
Choices made in the economy involve a continuous tug of war between consumers and producers over price.
Farmers periodically plant less wheat or raise fewer cattle if the prices for those commodities give too little return for the costs involved.
That is essentially what the economy is all about -- making choices on how to use limited resources of money, manpower, machinery and materials.
As people like to try new things it will sell well to start with; but as the attraction of novelty soon fades, sales will fall.
The real danger starts when utterly unnecessary things become "bargains".
Even the poorest old-age pensioner ought to regard this as an insult.