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# A Discussion on the Classical Model of the Economy

The Classical model of the economy says that all markets always clear The labor market failing to clear does not exist in the Classical model because of competitive exchange equilibrium in which prices and quantities always adjust perfectly The Classical model is of a closed economy and the variables are real output employment real and nominal wages the price level and the rate of interest It is easier to understand the classical model using five diagrams that are numbered one through five in Appendix One The Classical Model These diagrams represent the separate parts of the model that together illustrate for the most part the entire Classical model Diagram one represents the production function which shows the assumption that real output y is determined by the level of employment N So y is a function of N and from the slope of the function we can see that output rises as employment is increased But there is a diminishing marginal productivity of labor which means that each time employment increases the increase in output will get smaller and smaller Diagram one illustrates the relationship between output and employment in the short run but does not determine the level of output or the level of employment But when used together with other diagrams of the model diagram one can be used to figure these things out Diagram two is the labor market with the real wage w on the vertical axis and employment N on the horizontal axis In the classical model the supply of labor depends upon the real-wage level because as the real wage rises more people are willing to work The line SN represents the labor supply function and the line DN represents the demand for labor As the real wage increases so does the labor supply function but as the labor supply function increases the demand for labor decreases Because the Classical model makes real wages perfectly flexible and allows it

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