保障房市场与商品房市场关系研究

保障房和商品房在本质上是差异化产品,两者在对应的需求层次、房屋的品质、价格、供给和渠道等方面都存在着巨大的差别。自我国房地产市场化以来,商品房就始终处于市场独大的局面,但随着近年来我国政府加大了对楼市的调控、加快了保障房建设的步伐,房地产市场已朝着保障房市场和商品房市场并重的＂双轨制＂迈进。然而,保障房的大规模兴建和投放市场会对商品房市场乃至整个中国楼市产生什么影响,以及保障房供给体系在运行与管理过程中存在什么问题,目前尚不确定。为此,有必要对其深入分析并寻找对策。     

Self-Medication, Traumatic Reenactment, and Somatic Expression in Bulimic and Self-Mutilating Behavior

A psychoanalytic framework provided direction for research on the association between binge-purging (bulimic) and self-mutilating behaviors, comparing them for similarities and differences. The similarities in the multiple functions and psychosomatic processes served by these behaviors are presented, as well as the phenomenon of symptom substitution. Both behaviors tend to be practiced by those with severe personality and dissociative disorders and post-traumatic stress disorder. Both serve ego-compensatory needs in the absence of the adequate ability to regulate and modulate emotions, moods, and tensions. They may serve as compensatory attempts to differentiate self and object, define and differentiate body boundaries, master severe childhood trauma by means of psychophysiological addictive reenactments, and to express emotion.     

Newsvendor Problems with Demand Shocks and Unknown Demand Distributions

In today's competitive market, demand volume and even the underlying demand distribution can change quickly for a newsvendor seller. We refer to sudden changes in demand distribution as demand shocks. When a newsvendor seller has limited demand distribution information and also experiences underlying demand shocks, the majority of existing methods for newsvendor problems may not work well since they either require demand distribution information or assume stationary demand distribution. We present a new, robust, and effective machine learning algorithm for newsvendor problems with demand shocks but without any demand distribution information. The algorithm needs only an approximate estimate of the lower and upper bounds of demand range; no other knowledge such as demand mean, variance, or distribution type is necessary. We establish the theoretical bounds that determine this machine learning algorithm's performance in handling demand shocks. Computational experiments show that this algorithm outperforms the traditional approaches in a variety of situations including large and frequent shocks of the demand mean. The method can also be used as a meta‐algorithm by incorporating other traditional approaches as experts. Working together, the original algorithm and the extended meta‐algorithm can help manufacturers and retailers better adapt their production and inventory control decisions in dynamic environments where demand information is limited and demand shocks are frequent      

近代日本消费需求变动的因素分析

长期影响近代日本消费需求变动的因素主要有四个方面:国民经济的不断增长和国民收入的不断提高是近代日本消费需求逐渐上升的物质基础和前提条件;近代工矿交通事业的发展,使国民收入分配格局朝着有利于劳动的方向转变,这是促进近代日本消费需求不断上升的积极力量;人口规模及其构成的变动是近代日本消费需求不断上升的重要推动力量;消费的示范效应、攀比行为和不可逆行为对消费需求不断上升起着一定的推动作用。     

对"出口导向"和"进口替代"两种外贸发展战略的再认识

本文对进口替代和出口导向两种外贸战略进行了分析,认为我国应该充分利用大国的优势,立足于国内需求,降低对外依存度,同时应根据经济全球化的内在要求积极与世界经济接轨,实施进口替代与出口导向相结合的外贸战略,以成功应对经济全球化的挑战。     

中国工业部门的能源CES生产函数估计

在构建1980—2010年中国工业部门投入—产出的数量和价格数据库基础上,估计了中国工业部门的能源CES生产函数,通过比较不同函数形式下的估计结果后发现:（1）（KE）L函数形式较符合中国工业部门的实际情况,且工业部门的资本—能源替代弹性的估计值为0.32,合成品—劳动的替代弹性的估计值为0.22;（2）（KE）L函数形式下,中国工业部门能源CES生产函数中的能源增强型技术进步率的估计值为2%,资本增强型技术进步率的估计值为-4%,劳动增强型技术进步率的估计值为6%。     

论传统相关产品市场界定方法在互联网即时通讯软件相关产品市场界定的适用

随着互联网产业竞争的日益加剧,互联网企业滥用市场支配地位案件也层出不穷,而＂奇虎360诉腾讯QQ垄断案＂就是其中的典型案例。在该案中,腾讯QQ作为一种互联网即时通讯软件,其相关产品市场的界定是本案的争议焦点之一,也是难点之一。学界有观点认为,由于互联网行业中用户锁定效应、零价格、双边市场的存在,传统的反垄断相关产品市场界定方法无法有效界定本案的相关产品市场。通过对该案的具体案情、特征进行分析,传统的相关产品市场界定方法仍能在本案中适用,本案中腾讯QQ这一互联网即时通讯软件的相关产品市场是＂在线交流服务市场＂。     

Demand and supply network design scope for personalized manufacturing

This paper first presents personalizing and personalized manufacturing as a means for firms to meet the rising challenge, faced by a large variety of manufacturers, to offer innovative highly personalized products with short and reliable delivery delays in a digital and global economy that is highly turbulent and competitive. It positions personalizing versus the current trend of mass customising. It characterizes complementary types of personalizing and highlights the key elements for their successful implementation from a demand and supply network perspective. Finally, it illustrates the scope and addresses how personalizing affects the design of the demand and supply network, emphasizing the scope of this design influence, the variety of options for each element of the network, and the interrelationships between the design decisions.     

日本《低碳投资促进法》述评

日本参议院于5月18日通过了《低碳投资促进法》,该法是日本建设低碳社会的最新立法,规定了对从事适合能源环境的制品开发与制造的特定事业者提供筹资支持,需求开拓支援法人承保租赁合同等措施,对我国的相关立法有一定的借鉴意义。     

Standard Errors for Elasticities: A Comparison of Bootstrap and Asymptotic Standard Errors

This article compares two methods of deriving standard errors for elasticities in a linear expenditure demand system with first-order autoregressive errors. The first is the ordinary Taylor series method and the second is Efron's bootstrap. In an example problem, these two methods yielded similar values for the standard errors, with the exception of the income elasticity standard errors, for which the asymptotic standard errors were apparently too large by a factor of two.