本文選題：隨機內(nèi)生增長 + 治安投資�。� 參考：《華中科技大學》2007年碩士論文

【摘要】： 治安投資對經(jīng)濟增長的影響日益受到經(jīng)濟學家的重視.本文將治安投資引入到隨機內(nèi)生增長理論中來,建立了兩個隨機內(nèi)生增長模型,利用隨機最優(yōu)化討論了隨機擾動、治安投資等因素對經(jīng)濟增長和社會福利的影響. 首先,考慮了個體治安投資比率為外生參數(shù)的隨機內(nèi)生增長模型.假定個體在決定治安投資比率時并無選擇余地.治安投資來自政府和個體的共同投資,政府通過稅收進行融資.同時考慮治安投資的福利效應和生產(chǎn)函數(shù),將治安水平納入效用函數(shù)和生產(chǎn)函數(shù).利用隨機動態(tài)最優(yōu)化方法,求出了代表性個體決策者在均衡時的消費--財富比、物質(zhì)資本占總的財富的份額以及期望經(jīng)濟增長率.得出了以下結果:產(chǎn)出及公共開支的波動對經(jīng)濟增長始終有推進作用.在模型參數(shù)取特殊值情形下,分別求出了最優(yōu)個體治安投資率和最優(yōu)稅率,在這種特殊情形下,在低稅率與低個體治安投資段,增大征稅或個體治安投資有益于福利但有礙于增長,高額征稅或過高的個體治安投資對于福利與增長均無好處.最后還討論了公共治安投資對經(jīng)濟增長和福利的影響. 其次,考慮了個體治安投資比率為外生參數(shù)的隨機內(nèi)生增長模型.在第一個模型的基礎上,將個體治安投資比率優(yōu)化為內(nèi)生變量.理論上求出了均衡狀態(tài)下消費--財富比、物質(zhì)資本占總的財富的份額、個體治安投資率以及期望經(jīng)濟增長率.重點分析了模型參數(shù)對最優(yōu)個體治安投資率的影響.
[Abstract]:The influence of public security investment on economic growth is paid more and more attention by economists. In this paper, the security investment is introduced into the stochastic endogenous growth theory, two stochastic endogenous growth models are established, and the effects of stochastic disturbance and public security investment on economic growth and social welfare are discussed by means of stochastic optimization. Firstly, the stochastic endogenous growth model with the ratio of individual security investment as exogenous parameter is considered. It is assumed that individuals have no choice in determining the security investment ratio. The public security investment comes from the joint investment of the government and the individual, the government carries on the financing through the tax. At the same time, considering the welfare effect and production function of public security investment, the security level is incorporated into utility function and production function. By means of stochastic dynamic optimization method, the consumption-wealth ratio of representative individual decision makers in equilibrium, the share of material capital in total wealth and the expected economic growth rate are obtained. The following results are obtained: fluctuations in output and public spending have always contributed to economic growth. The optimal individual security investment rate and the optimal tax rate are obtained under the special value of the model parameters. In this special case, the investment section of the low tax rate and the low individual public security investment is obtained. Increasing taxation or individual security investment is beneficial to welfare but hinders growth, but high tax or excessive individual security investment is not beneficial to welfare and growth. Finally, the influence of public security investment on economic growth and welfare is discussed. Secondly, the stochastic endogenous growth model with the ratio of individual security investment as exogenous parameter is considered. On the basis of the first model, the ratio of individual security investment is optimized as an endogenous variable. In theory, the consumption-wealth ratio, the share of material capital in the total wealth, the individual public security investment rate and the expected economic growth rate under equilibrium state are obtained. The influence of model parameters on the optimal individual investment rate is analyzed.
【學位授予單位】：華中科技大學
【學位級別】：碩士
【學位授予年份】：2007
【分類號】：F224;F061.2;D631.4

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相關期刊論文 前1條

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本文編號：1802941