中国人口老龄化区域溢出与分布差异的空间计量经济学研究

将空间因素纳入我国人口老龄化问题的研究框架,对各地区人口老龄化的空间分布特征进行概括和探索性空间数据分析,利用空间计量经济学理论方法和空间误差模型,对各要素影响作用的方向和大小进行实证研究,最后得出综合结论和政策建议。除老龄化惯性、人口增长以外,首次对人口老龄化区域溢出机制进行了重点阐述。我国人口老龄化区域溢出作用不仅客观存在,而且影响显著,这一发现从空间维度拓宽了研究视野,为我国人口老龄化问题理论研究和政策制定提供了有益的借鉴。     

“发展型”或“政策型”生育率下降?——基于翼城“农村二孩”试点的分析

中国生育率在过去30年持续下降至较低水平,围绕下降的主要动因及其政策涵义的争论热烈。文章以"农村二孩"试点之一的翼城为案例,重新梳理和检视了在已有研究中较为忽视的翼城试点出台的背景和政策实施细则,并从多个方面考察了翼城生育政策对生育行为和生育意愿的影响。与已有研究对翼城试点的认识不同,政策文献回顾表明:"农村二孩"生育政策只是在初婚时间、生育子女数和生育间隔方面做出一些技术性"调整"以缓解国情与民情的矛盾,并没有实质性地改变实施计划生育这一基本国策的初衷。多维度数据分析交叉印证了在实施限制性的生育政策以后,社会经济发展变量不能解释生育率的下降,翼城现有生育行为和生育意愿更多是政策干预的结果,是政策促成的外生性转变,而非由于社会经济发展导致低生育意愿的内生性转变。     

The World Implications of the ＂Chinese Road＂ in the Context of Globalization

中国建国60年来和改革开放30年来所取得的巨大成就,使世界热衷于讨论是否存在某种“中国模式”或“北京共识”。“模式”包含着两层含义,一是发展道路的独特性,二是发展道路的可输出性和可效仿性。从前一层含义上来看,中国的发展的确创造出了一个独特的中国模式。中国发展道路是在中国人追求民族独立和现代化的历史背景下,在最终选择了马克思主义的条件下而实现的,其本质就是选择走社会主义道路而拒绝资本的扩张和奴役。全球化伴随着全球资本力量的无限膨胀,世界政治、经济都沦于世界资本主义的奴役之下,中国的发展道路正是在这个背景下显示出其独特性。同时,中国也不会向外输出自己的发展模式,通过对和谐、平等和多样性的追求,中国道路的成功将改变现有国际规则和全球发展观念。中国道路在全球化时代中具有世界性的意义。     

Weapons of penile smooth muscle destruction: Androgen deficiency promotes accumulation of adipocytes in the corpus cavernosum

In men with erectile dysfunction, venous leakage is a common condition among non-responders to medical management and is attributed to penile smooth muscle atrophy. Androgens play a role in regulating trabecular smooth muscle growth and function. Further, androgens stimulate differentiation of progenitor cells into smooth muscle cells and inhibit their differentiation into adipocytes. We postulate that androgens exert a direct effect on penile tissue to maintain erectile function, and that androgen deficiency produces metabolic and structural imbalances in the corpus cavernosum, resulting in venous leakage and erectile dysfunction. To date, research efforts on the mechanisms by which androgens regulate penile erectile physiology have mainly focused on investigating the role of the NO/cGMP pathway. However, androgen-dependent mechanisms that regulate tissue remodeling have been poorly defined. Characterization of the molecular and cellular mechanisms by which androgens regulate corpus cavernosum structural and functional integrity would provide significant gains in knowledge and understanding of an important pathogenic process. In this review, we discuss the potential role of androgen in maintaining differentiation of progenitor cells into smooth muscle lineage and inhibition of differentiation into adipocytes. Androgen deficiency promotes differentiation into adipogenic lineage, and accumulation of adipocytes in the corpus cavernosum may contribute to erectile dysfunction.     

Should government and company planners influence each other?

With the National Plan of 1965, government planning in Britain got off to a poor start. Now, with the Governement's green paper, The Task Ahead, it seems about to be reborn. In this article the author argues the case for closer co-operation between planners in government and planners in business along the lines of the planning dialogue which occurs in NEDC. He answers critics who complain of government pressure on industry and the undue influence of business on government, and suggests that “consultative planning is essential if national plans to be made flexible and realistic, and if company plans are to be made with the national interest in mind”.