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一国国防支出除受制于其经济发展情况之外,还受到其周边以及与主要战略对手之间的博弈影响。在分析中国国防支出均衡水平时,运用主成分分析法,可以在众多影响国家(或地区)中筛选出少数几个变量,减少多重共线性。分析表明,中国国防支出基本上围绕其均衡水平波动,偏离度除个别年份以外,基本都在10%以内的水平波动,中国国防支出基本上适应了国外国防压力和国内GDP增长形势的需要。
In addition to being subject to its economic development, a country’s defense spending is also affected by the game between its periphery and major strategic rivals. When analyzing the equilibrium level of China’s defense expenditures, by applying the principal component analysis, a small number of variables can be screened out in many influencing countries (or regions) to reduce multicollinearity. The analysis shows that China’s national defense expenditures basically fluctuate around its equilibrium level. The degree of deviation has basically fluctuated within 10% except for a few years. China’s national defense expenditure basically meets the needs of foreign defense pressures and the growth of domestic GDP.