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Наталия в категроии Английский язык, вопрос открыт 21.01.2018 в 03:16

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Economic Models and Theories
Economists measure and 1)______ the material side of life, but their main 2)______ is to understand how economies operate. In 3)______, as in other fields, understanding is valuable because it 4)______ us to use logic to answer ‗what if‘ questions.
For instance, if you understand how a car operates you can 5)______ what will happen to any car if it runs out of gas. To make such a 6)______ you apply basic logic to a simple description or 7)______ of automobile operation. The simpler the model the easier it is to use it to give general answers to ‗what if‘ questions but the less 8)______ the predictions it 9)______. Thus, the simplest 10)______ of auto operation would predict only that any car‘s engine will stop if it runs out of 11)______, while a more complex model might enable you 12)______ how far a particular car would move, depending on the road and its speed, when the gas ran out.
Real economies are too 13)______ to think about logically in 14)______, there are too many different 15)______, services, firms, workers and consumers to keep track of. In order 16)______ understandable descriptions of reality, we must 17)______ drastically. But it then follows that all economic theories are wrong - since they leave out some aspects of 18)______. Does it 19)______ generally correct answers to questions of interest? Another way to put this is that the predictions of 20)______ models should be consistent with the available evidence.