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| Home About the TEDC The TEDC at Work Commercial Areas Doing Business in Teaneck Real Estate Community Resources In the News Maps & Directions Terms / Conditions / Policies Contact Us | The denial of Say's law and the theory of effective demand. As we have seen, took classical Say's Law, stating that "supply creates its own demand," and therefore did not attach any significance to the demand for goods as a factor involved in determining the level of income and employment. Keynes rejected Say's Law and turned the causal relationship between aggregate supply and demand. According to his theory, not aggregate supply creates its own demand, but on the contrary, the aggregate demand creates its own proposal. We offer carefully consider the theory of effective demand created by Keynes. Suppose we are given: the technological level, the means of production and costs. Then the production of a certain quantity of production (or employment a certain number of workers) requires from the individual entrepreneur and the whole system of certain costs. We say that a certain amount of the bid price of the product (or labor), the expectation of the revenue that is sufficient to induce employers to offer this product (or to show the demand for this work). The ratio between price and volume of the aggregate supply of the product (or labor) is called the aggregate supply function. On the other hand, entrepreneurs are building projections of revenue that they receive from the sale of a certain amount of product, and each hypothetical level of the product corresponds to the expectation of some revenue. The relationship between expected revenues and volume of production (or labor) is a function of aggregate demand. But if for a given value of Q output price exceeds the estimated proceeds of aggregate supply, employers are increasing production (and employment), seeking higher returns, but if the estimated proceeds below the offer price, employers reduce the level of production (and employment), again in order to maximize profits. Only when the prospective earnings and the offer price are equal, employers are in the optimum position and engaged in the manufacture of products (and keeps the time) at this level. Thus, according to Keynesian theory, the production level, which is intended to support entrepreneurs, determined by the point of intersection of the aggregate demand function with the aggregate supply function. The value of the aggregate demand function at the point of intersection is called the effective demand. |
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