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  3. Microeconomists are on the march, winning top awards, helping battle the crisis, and advising the world’s most innovative firms.

Microeconomists are on the march, winning top awards, helping battle the crisis, and advising the world’s most innovative firms.

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问题     Microeconomists are on the march, winning top awards, helping battle the crisis, and advising the world’s most innovative firms. This week the trend continued, with the Nobel Prize going to two micro-economists. Why are they doing so well?
    First up, microeconomists seem to be very good at building new findings on old foundations. Take the Nobel Prize, covered by a colleague in the Free exchange print article—Game, set and match—this week. The prize went to economists who built on cooperative game theory, an ancient development by economic standards (one of the main papers was published in 1962). Cooperative game theory looks at how well people can do when acting together; by examining all the possible combinations, theorists can spot outcomes that individuals acting alone cannot achieve. They then focus on something called the "core" of the game—those outcomes that are "stable" in the sense that no subgroup would do better by breaking away and acting alone. But the theory is pivotal in understanding how to set up medical job-matching system in a stable way so that no hospital or medical school wants to break off and set up alone. Cooperative game theory is still being used in cutting edge auction design.
    And the Nobel is just one example of real-life problems solved by micro. A thoroughly macroeconomic problem—unconventional monetary policy—is another. In 2007 and 2008, central banks and finance ministries decided that it was a good idea to follow this policy which involves exchanging good assets (cash or treasury bills, for example) for illiquid ones. But working out exactly how to do it was a very different question. One major stumbling block was to work out what price to pay for the bad assets: markets were thinly traded and prices often did not exist.
    Micro theorists came up with the answers. In America, various academics advised the US Treasury in 2008. But the best example of micro in action is Britain, where the Bank of England uses a new type of auction—the Product Mix auction—designed by Paul Klemperer. The Bank’s Governor, Sir Mervyn King, clearly finds micro theory useful:
    There is an important lesson about making cutting edge economics accessible here. Auction theory uses very tough mathematics to grind out results. But micro theorists also work hard on the intuition for their work. As an example, the results from Mr Klemperer’s auction can be set out in a simple graphical format. This means non-specialists (like central bank governors) can access it easily, making it much more useful in policy settings. In macroeconomics, the opposite seems to be true: the maths is actually easier, but it is just hard enough to exclude non-specialists, and this shields models from popular scrutiny.
    Micro has made big recent developments in much more familiar areas too, including how we should think about the economics of Facebook, stock exchanges, newspapers and money. These are all platforms or intermediaries that link two types of user (Facebook connects users and advertisers, exchanges connect buyers and sellers). The economics of these platforms has spawned a new branch of micro, first developed by Jean Tirole and Jean Charles-Rochet in the early 2000s.
    These types of new insight explain why leading academic microeconomics are also top advisers at innovative technology firms. Hal Varian, probably the world’s best known microeconomist, is also the top economist at Google. Granted, this happens with banks and business-school academics too, but in microeconomics the "real world" experience seems to be nourishing the discipline in a way that is less clear in macro.
    A final strength may come from geographic diversity. In micro, while American universities lead the field, there are lots of other world-class hubs too. Macroeconomics, by comparison, is an all-American affair. Maybe this means a more diverse set of ideas about how firms, consumer and markets work are being brought to academic work in micro. Whatever the reason, microeconomists are on the up.
It can be inferred from Paragraph 7 that the "real world" experience ______.
选项 A、develops microeconomics in a more obscure way than that in macroeconomics
B、is of greater value in macro sectors like banks and business schools
C、qualifies microeconomics for the work at innovative technology firms
D、provides new insights which influence microeconomics in a less clear way
答案A
解析 推理判断题。根据题干信息提示定位到第七段。该段最后一句提到现实经验对微观经济学的促进方式似乎不像在宏观经济学领域中那么明显，故A项为正确答案。该段第三句指出“在银行家及商学院学者身上也会发生同样的情况”，而非现实经验对银行、商学院等宏观部门价值更大，因此排除B项；该段第一句提到微观经济学者中的领军人物同时也是创新型技术公司的高级顾问，是由于他们有一些新颖的见解，而不是因为他们拥有现实经验，因此排除C项；第七段并未提到现实经验提供了影响微观经济学的新见解，因此排除D项。
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