排序方式: 共有52条查询结果,搜索用时 15 毫秒
31.
Distribution differences in human capital matter for a country's growth and trade. While the existing literature considers only the diversity difference in talent distribution, we argue that the kurtosis difference is also an important factor. In a two‐sector equilibrium growth model, where the production function is supermodular for the consumption‐good sector and submodular for the R&D sector, we prove that the diversity effect and kurtosis effect are opposite to each other. A country endowed with more diverse but leptokurtic talent distribution may have lower growth rate and import submodular goods, opposite to the conventional result from considering only the diversity difference. 相似文献
32.
This paper analyses the impact of home military spending and foreign military threat on economic growth in a stochastic endogenous growth model involving the supply‐side and demand‐side effects produced by military spending. The paper states that an increase in home military spending affects economic growth through three channels, including the crowding‐out effect, the spin‐off effect, and the resource mobilization effect. The net effect which depends on these three channels is ambiguous. Hence, we demonstrate that there exists an optimal defence burden that maximizes the economic growth rate. Furthermore, the optimal defence burden depends on the degree of risk preference. Namely, the optimal defence burden of the risk‐loving agent is more than that of the risk‐neutral agent, and in turn is more than that of the risk‐averse agent. At the same time, we prove that the relationship between the volatility in military spending and economic growth also depends on the degree of risk preference. In addition, we show that greater volatility in foreign military spending leads to a decrease in home aggregate consumption, and hence speeds up economic growth in the home country. 相似文献
33.
34.
研究目标:评价中国农业生产效率与减贫效率,探索效率的改善空间。研究方法:采用考虑非期望产出共同前沿下的二阶段EBM模型,对2013~2017年中国28个省份的中国农村统计数据进行研究。研究发现:在共同前沿下,东部地区总效率值显著高于中西部地区;第一阶段农业生产效率值明显低于第二阶段减贫效率值,农业生产效率仍然有较大的改善空间;大部分省份政府财政资金利用效率较高;农村贫困人口数量效率值有明显的地区分布差异,东北、西北和西南部分地区效率值较低。研究创新:构建全新的二阶段贫困研究理论分析框架,综合评价农业生产效率和减贫效率,在相关领域进行尝试性的拓展;结合共同前沿下EBM模型和网络DEA模型的优点,将改进的EBM模型应用于农业生产效率和农村减贫效率研究。研究价值:检验中国的减贫效率,总结中国扶贫的经验教训,探索扶贫路径。 相似文献
35.
36.
37.
38.
介绍了石墨化、石墨质、无烟煤基炭块的特点,并通过在同一系列不同的两个厂房对石墨质炭块与石墨化炭块技术参数,生产指标进行对比分析,发现石墨化炭块在生产使用中具有一定的优势,对今后电解生产有一定指导意义。 相似文献
39.
笔者从制度理论的视角来考察银行的战略选择.以交通银行重新组建以来所经历的若干次重大战略选择为分析对象.着重探讨其中制度因素对企业战略选择的影响,并尝试性地给出一个场域-制度-战略互动模型,提供一个解释框架. 相似文献
40.
耕地征收最优规模的理论与实证研究 ——基于边际理论视角 总被引:1,自引:0,他引:1
研究目的:针对当前盲目征收耕地的现象,探讨耕地征收最优规模测算方法,为科学调控耕地征收提供参考依 据。研究方法:生产函数模型与面板计量方法。研究结果:2005—2010年耕地征收实际规模从过度征收逐步趋近于最优规模;“十二五”期间需新增耕地规模为153.27万hm2。研究结论:(1)基于边际理论视角测算耕地征收最优规模的方法具有科学性和可操作性,可为各地合理确定耕地征收规模和土地利用总体规划修编提供参考;(2)保障粮食安全前提下的耕地效益最大化是确定当前最优征收规模的标准;(3)提升耕地的边际效益是解决当前耕地保护与建设用地扩张矛盾的关键。 相似文献