The Kalecki profit equation -- named after the economist Michal Kalecki -- describes how aggregated profits are determined by national accounting identities. (Note that Jerome Levy came up with a similar approach earlier; the equation is sometimes referred to as the Kalecki-Levy profit equation.) The results are perhaps not obvious if we look at profits from a bottom up perspective. From the perspective of business cycle analysis, the key point to note is that net investment is a source of...
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