For example, Keynesian models that performed well in predicting unemployment during the 1950s and 1960s have failed to light upon for divergence of levels of activity in labour and product markets since whence; theories ascribing a major role to wage-price sluggishness bear short relation to the facts. Efficiency wage theories, in which firms imperfect data about their workers productivities may generate unemployment, provide no cut across card of its variation over time. Insider-outsider theories, in which labour dist urbance costs create market power, do not ad! equately name the power of incumbent workers to the business cycle. Search opening shows how imperfect information allows unemployment and vacancies to coexist, but its predictions are not observationally obvious from those of other, simpler theories. Finally, shocks to vegetable oil prices, technology and trade set in motion ambit reactions with longer-term implications for...If you want to get a liberal essay, order it on our website: OrderCustomPaper.com
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