农户主体行为与农民土地权益保护

保护农民土地权益需要农民内力和社会外力的共同作用才能有效实现。随着工业化、城市化程度的不断加深,各地侵害农民土地权益的事件时有发生。目前我国农民自我保护意识普遍较弱,对其自身合法权益的维护产生较大负面影响,因此政府有必要从教育、法律、组织、制度等层面引导农民树立自我保护意识。     

Beauty is the promise of happiness?

We measure the impact of individuals' looks on life satisfaction and happiness. Using six data sets, from Canada, Germany, the United Kingdom, and the United States, we construct beauty measures in a number of different ways. Beauty raises happiness: A one standard-deviation change in beauty generates about 0.08 standard deviations of additional satisfaction/happiness among men, 0.07 among women. The finding is robust to a rare opportunity to measure it using an instrumental variables approach. Accounting for a wide variety of covariates, particularly educational, marital, and labor-market outcomes that might be affected by beauty, the gross effects are roughly halved, with small reductions arising from the impact of beauty on monetary outcomes.     

初探阶段性考试在《营销技能综合实训》课程中的实践

在传统考试方式的指导下,教师对于学生学习效果的考核和评估主要是依靠理论笔试的方法,从而导致学生对知识的学习和巩固主要是靠背被动的死记硬背。但是营销类的课程,特别是实训课程除了要求学生牢固掌握理论基础知识以外,更重要的就是理论在实践中的应用。因此,如何有效的考核学生是否已经掌握所学知识是我们教学研究的一个重点问题。本文重点介绍了一种新式的考核方式---阶段性考核方式。针对高职电子商务类学生的特点,初步探索了这种考核方式在营销技能综合实训这门课教学中的应用。     

A preliminary theoretical examination of the targeted public distribution system in India

A theoretical model of targeting in the public distribution system is set out. In any system of targeting there could be inclusion and exclusion errors. These errors could be reduced by search by the state. The state aims to minimise the costs of food administration subject to keeping the magnitude of the exclusion error bounded. Targeting involves a consideration of the objective poverty level, the official poverty level and the targeted poverty level by the state. The targeted poverty level could be less than the official poverty level if the extent of search is not adequate. The objective poverty level is an increasing function of the above poverty line issue price of food due to exclusion errors, a decreasing function of the procurement price of food and by definition the below poverty line issue price of food. The instruments in the hands of the state are the official poverty level, the above poverty line issue price for food, the procurement price of food and the extent of search. The comparative static implications of the model are set out.     

Some comments on the Sraffian Supermultiplier approach to growth and distribution

Abstract

The article discusses the Sraffian Supermultiplier (SSM) approach to growth and distribution. It makes 5 points. First, in the short run, the role of autonomous expenditure can be appreciated within a standard post Keynesian framework (Kaleckian, Kaldorian, Robinsonian, etc.). Second, and related to the first, the SSM model is a model of the long run and has to be evaluated as such. Third, in the long run, one way that capacity adjusts to demand is through an endogenous adjustment of the rate of utilization. Fourth, the SSM model is a peculiar way to reach what Garegnani called the “second Keynesian position.” Although, it respects the letter of the “Keynesian hypothesis,” it makes investment quasi-endogenous and subjects it to the growth of autonomous expenditure. Fifth, in the long run it is unlikely that “autonomous expenditure” is really autonomous. From a stock-flow consistent point of view this implies unrealistic adjustments after periods of changes in stock-flow ratios. Moreover, if we were to take this kind of adjustment at face value, there would be no space for Minskyan financial cycles. This also creates serious problems for the empirical validation of the model.     

双差数列的几个性质

讨论了双差数列与周期双差数列的通项公式以及求和公式。     

角速度传感器误差校正研究

某角速度传感器的输入与输出成近似线性关系,测量输出的电压值即可得到目标运动的角速度。为了提高测量的精度,通过对角速度传感器零位和灵敏度的误差进行校正,可得到更为精确的目标运动角速度。实验表明,该校正方法能有效提高角速度传感器的测量精度,有一定的实用性。     

经济长波理论与网络文化产业发展

创新,是经济发展的本质规定。文化,是衡量世界发展的重要尺度。网络文化产业发展,正是一种创新性的发展。它既同经济周期、长波理论紧密关联,又具有反经济周期的特性,呈现出逆势上扬的特点。当然,网络文化产业的反周期与逆势上扬,并不一定是消费者直接付费的增长,而可能是其间接支出的累积,例如广告投入的力度加大。中国网络文化产业,正进入发展的黄金时期。     

THE AGEING POPULATION: CRUNCH TIME FOR GOVERNMENT REFORMS

Current discussions about reforms to health and long‐term care miss the most important trends that should be influencing debate. With an ageing population that includes a higher proportion of people with manageable illnesses, health and care costs will rise. Reforms must ensure that existing government spending is used more efficiently and that it harnesses – rather than works against – private financing.     

网上商品热销的影响因素探析——基于分位数回归的实证研究

本研究从网上销售的影响因素出发,采用搜索程序获取了淘宝网的4059个货架1周的销售数据,通过分位数回归方法对不同热门程度产品的价格、信誉、保障标记以及口碑的需求弹性进行了实证分析。研究结果表明,随着产品热门程度的提高,信誉的需求弹性不断增强,而价格、保障标记以及口碑的需求弹性却不断减弱。由此表明,产品的价格降低,保障标记级别和口碑的提升都能使销售趋于分散,而提高商家的信誉却能加速销售向热门产品集中,使得"热门更热"。