农村非国有企业与农村经济增长——以甘肃省为例

通过对主要经济指标的回归分析可知,农村非国有企业转移或吸纳农村剩余劳动力数量对农村经济总收入影响显著,农村非国有企业从业人员的增加对企业总产值的影响显著。可见,农村剩余劳动力的流动,不仅会促进农村经济增长,增加农民收入,而且对于农村非国有企业本身而言,也有益于其成长和发展。因此,须充分实现农村剩余劳动力的流动,大力发展农村非国有企业。     

草场单联户经营模式的交易费用分析——基于玛曲草场治理结构

玛曲草场生态地位重要，为解决草场的产权不清、责权不明，以及由此而产生的“公地悲剧”和负外部性等问题，改革开放后国家根据农地承包经验，逐步实行草场私有化到户经营，同时并存的还有牧户自组织经营的联户模式。针对近年来玛曲草场的利用情况，以及私有化到户的草场仍存在公共品问题，反而有加剧的趋势，以交易费用理论对涉及到初始产权配置问题的玛曲草场单户和联户经营模式进行分析。     

W*-概率空间上的车贝晓夫不等式及大数定理

研究W*-概率空间上的正常随机变量的期望、方差和*-自由性等性质,给出了关于正常随机变量的车贝晓夫不等式及大数定理.     

Current Status, Challenges, and Future Sustainable Development Strategies for China Energy

China‘s rapid economic growth, high-energy-intensitive industrial and product structure, coaldominated energy structure, and low-energy efficiency result in China being the second largest energy consumer as well as the second largest C02 emission country in the world. The Markal model, an integrated energy, environment, and economic model, was used to analyze China‘s energy development scenarios from 1995 through 2050 for policy study of long-term energy strategies. The results show that diversified, reliable, and environmentally sound energy development strategies should be adopted for China to solve the challenges of the increasing energy demand, the enlarging gap between the oil demand and supply, and growing concerns over local as well as global environmental issues. Coal-derived synthetic transportation fuels through coal liquefaction, hydrogen making, and advanced coal-based poly-generation technologies should be developed to solve energy security issues.