In the “real world” prices are not fixed, and hence the aggregate supply curve is not completely horizontal with a slope of zero. In order to illustrate why it is that aggregate supply curves slope up and to the right, Keynes made two crucial assumptions about the operation of the labor market. What were those two assumptions?

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Inflation and Purchasing Power Theory

In economic terms, Inflation refers to the increase in the costs of various commodities which are used in daily lifestyle like food, clothes, transport, etc. over a specific time. It may lead to a fall in the purchasing power of the people and also affects the exchange rate of the currency because of the price increase. As the purchasing power falls the unit of the currency in the economy falls. When the prices of the commodities are decreased, then the purchasing power of the consumers will rise, then it will lead to deflation and changes the currency of the base economy to that of the foreign economy which will lead to change in exchange rates.