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在程恩富的双约束假设下,过剩供给和资源再生能力,特别是第一部类过剩供给和资源再生能力是影响经济发展的重要参数。如果第一部类供给过剩增长率大于第一部类不变资本的自然增长率,那么经济发展就会出现萎缩,或者停滞不前。如果第一部类供给过剩增长率小于第一部类不变资本自然增长率,那么经济发展就会出现周期波动。总之,第一部类供给过剩增长率与第一部类不变资本自然增长率的对比关系,以及资源再生能力具有切换性质。此外,两大部类资源再生能力、两大部类供给过剩增长率对经济发展的程度具有强化或削弱作用。两大部类资源再生能力、供给过剩增长率越高,经济规模越小;反之越大。
Under the double constraint hypothesis of Cheng Enfu, excess supply and resource regeneration capacity, especially the first type of surplus supply and resource regeneration capacity, are important parameters affecting economic development. If the excess growth rate of supply in the first category is greater than the natural growth rate of the constant capital in the first category, economic development will shrink or stagnate. If the first type of excess supply growth rate is less than the natural growth rate of the first type of constant capital, then there will be periodic fluctuations in economic development. In short, the first category of excess supply growth and the first part of the constant growth rate of the constant comparison of natural resources, and renewable nature of the nature of the switch. In addition, the resource recycling capacity of the two major groups and the oversupply growth rates of the two major categories have the effect of strengthening or weakening the degree of economic development. Two major types of resource regeneration capacity, the higher the excess supply growth rate, the smaller the economy; the other hand, the larger.