Consider an economy in which all taxes are au- tonomous and the following values of autonomous consumption, planned investment, government expenditure, autonomous taxes, and the marginal propensity to consume are given: ca=1,400 ip=1,800 g=1,950 ta=1,750 c=0.6 (a) what is the level of consumption when the level of income (y) equals $10,000? (b) what is the level of saving when the level of income (y) equals $10,000? (c) what is the level of planned investment when the level of income (y) equals $10,000? what is the level of actual investment? what is the level of unintended inventory investment? (d) show that injections equal leakages when income (y) equals $10,000. (e) is the economy in equilibrium when income (y) = $10,000? if not, what is the equilibrium level of income for the economy described in this question?

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The business cycle is the periodic but irregular up-and-down movement in economic activity, measured by fluctuations in real gross domestic product (gdp) and other macroeconomic variables. a business cycle is typically characterized by four phases—recession, recovery, growth, and decline—that repeat themselves over time. economists note, however, that complete business cycles vary in length. the duration of business cycles can be anywhere from about two to twelve years, with most cycles averaging six years in length. some business analysts use the business cycle model and terminology to study and explain fluctuations in business inventory and other individual elements of corporate operations. but the term "business cycle" is still primarily associated with larger (industry-wide, regional, national, or even international) business trends.