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凯恩斯宏观管理理论认为,市场经济具有有效需求不足的必然性,由于存在“流动性”陷阱问题,货币政策本身是无效的,宏观管理必须依靠实施赤字财政政策以解决有效需求不足问题。本文研究表明,“流动性陷阱”的存在并不意味着货币政策失效。从全口径的角度分析,“流动性陷阱”表明货币政策对证券市场直接有效,对实体经济间接有效;从全过程角度分析,“流动性陷阱”具有暂时性,一般只存在几个月,这是货币政策有效的另一表现形式,即存在政策时滞;从实体经济、虚拟经济、货币政策的“三条龙”运行规律分析,则实体经济、虚拟经济和货币政策之间具有协调运行的特征,运行中存在非同步性。在边际消费递减规律被证明并不存在的背景下,凯恩斯宏观管理理论的三大假设条件都被证实是伪命题,因此,凯恩斯宏观管理理论完全是非科学的。
Keynes’s macro-management theory holds that the market economy has the inevitability of insufficient effective demand. Due to the trap of “liquidity”, monetary policy itself is ineffective. Macro-management must rely on the implementation of deficit fiscal policy to solve the problem of insufficient effective demand. This study shows that the existence of “liquidity trap ” does not mean that monetary policy lapsed. From the perspective of full-scale analysis, “liquidity trap ” shows that monetary policy is direct and effective on the securities market, indirect effect on the real economy; from the perspective of the whole process, “liquidity trap ” has a temporary, there are usually only a few For months, this is another manifestation of effective monetary policy, that is, there is a lag in policy. From the analysis of the operation rules of the real economy, the fictitious economy and the monetary policy, the real economy, the fictitious economy and the monetary policy Have the characteristics of coordinated operation, there is non-synchronous operation. Under the circumstance that the law of diminishing marginal consumption has been proved to be non-existent, all three major assumptions of Keynes’s macroeconomic management theory have been proved to be false propositions. Therefore, Keynes’s macroeconomic management theory is totally unscientific.