The MIT dictionary of modern economics

the long version

This is an up-to-date, authoritative reference designed primarily for students of economics but invaluable also to students of business and other social sciences and ideal for anyone who want a brief explanation of an economic concept or institution. The dictionary answers in a clear and concise way the enduring questions, which economists have considered for two centuries or more, as well as the issues of the moment, such as economic change in Europe, the problems of pollution, or the prospects for greater freedom of trade.