标题：Rethinking the Relation between Government Spending and Economic Growth: A Composition Approach to Fiscal Policy Instruction for Principles Students
摘要：Standard introductory textbook authors assert that an increase in government spending expands aggregate demand in the short run but also raises the interest rate and, thus, crowds out private investment in the long run. Because the decrease in investment results in a smaller capital stock, potential output or production capacity decreases. The author challenges the standard assertion by dividing government spending into two components: public consumption and public investment. The short-run effects of an increase in government spending are the same for both components but the long-run effects are dramatically different. The author demonstrates the importance of the composition of public spending to long-run economic performance, using the conventional graphs found in the leading principles of economics textbooks.
关键词：fiscal policy; potential output; principles textbooks; private capital; public capital
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