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文章建立一个随机内生增长模型来阐明主要政策参数对经济增长与社会福利的影响.若对生产函数、效用函数、偏好及随机干扰作一些特殊的假设,我们证明了主要政策参数的均衡值能被模型参数唯一决定.进一步我们还得到了期望增长率与储蓄的清晰解.文章的最后,我们证明了政府支出直接影响个体决策者的决策:即提高经济增长率将减少福利;反之,增加福利将减少增长率.
The article establishes a stochastic endogenous growth model to illustrate the impact of major policy parameters on economic growth and social welfare.If we make some special assumptions about production function, utility function, preference and stochastic disturbance, we prove that the equilibrium value of the main policy parameters We get the clear solution of expected growth rate and saving rate.Finally, we prove that government expenditure directly affects the decision-making of individual decision maker: to increase the economic growth rate will reduce the welfare; on the contrary, to increase the welfare Will reduce the growth rate.