Appropriate technology in a Solovian nonlinear growth model

We propose a Solovian growth model with a convex–concaveproduction function and international technological spillovers.We test the empirical implications of the model, analysing theeffects of the productivity slowdown that followed the oil shocksof the 1970s. We argue that this slowdown, altering the worldincome distribution, affected the pattern of international technologicalspillovers, taking the poorest countries further away from thetechnological leaders, and therefore unable to exploit theirtechnologies. The result is the emergence of a poverty trapfor low-income countries.     

THE INDICATOR FUNCTION: A USEFUL DEVICE FOR DETERMINING CERTAIN MINIMAL SUFFICIENT STATISTICS

An elegant technique for obtaining minimal sufficient statistics in the case of families of distributions with support depending on the paramaters, is exposed.     

Are Interventions Self Exciting?

The time pattern of official interventions on the foreign exchange market exhibits periods of intense activity followed by long spells of inaction. In this paper, we examine whether the time interval between successive intervention matters for future interventions. To capture the properties of intervention duration an ACD model is used. The data are daily observations of interventions by the Federal Reserve, the Bundesbank and the Swiss National Bank. The evidence finds that the intervention duration is highly persistent and that the hazard is time dependent.     

Reserve characteristics and mining costs An empirical study of the phosphate industry

This paper deals with an estimation of phosphate mining cost function. Here, it is argued that other characteristics of reserves, besides their size, could be quite important in the cost function. The result of a cross-sectional analysis of phosphate mining in the world shows that reserve size and average total cost have a positive and modest statistically significant relationship in one of the two models. Among many qualitative characteristics and location factors tested in this paper, overburden, grade, ore/product ratio, water availability, and the price of capital are significant with expected signs. Finally, the results confirm the existence of economies of scale in phosphate mining which seem to be more related to mining technology than to reserve size.     

Measurement and Analysis on Intensive Production Benefit of Industrial Enterprise

By means of application of the production model, this paper establishes a total efficiency model of production factors and realizes scientific measurement of intensive productive benefit of industrial enterprises by computing economic benefit of intensive production. This will provide scientific foundation for enhancing the combination quality of production factors and improving the intensive level.     

对CD生产函数测算农业技术进步贡献率方法的探讨

本文通过对CD生产函数测算农业技术进步贡献率的基本模型及生产函数的假设与应用条件的阐述,提出了使用CD函数测算农业技术进步贡献率中存在的几个问题,并对改进技术进步测定方法进行了有益的探讨。     

重构政府与高校关系 落实高校办学自主权

在社会转型过程中,影响我国高等教育运行的学术力量、政治力量、市场力量等因素正在重组。市场力量既影响举办者,又影响管理者,更影响办学者。影响办学者的结果是举办体制多元化,社会力量办学异军突起;影响管理者的结果是政府转换职能,落实高等学校办学自主权;影响办学者的结果是高等学校面向社会,依法自主办学。落实高等学校办学自主权,是政府和高等学校的共同责任。     

Minimax estimation under convex loss when the parameter interval is bounded

In the present paper families of truncated distributions with a Lebesgue density forx=(x ₁,...,x _n ) ε ℝ ⁿ are considered, wheref ₀:ℝ → (0, ∞) is a known continuous function andC _n (ϑ) denotes a normalization constant. The unknown truncation parameterϑ which is assumed to belong to a bounded parameter intervalΘ=[0,d] is to be estimated under a convex loss function. It is studied whether a two point prior and a corresponding Bayes estimator form a saddle point when the parameter interval is sufficiently small.     

A new efficient method for estimating the Gerber–Shiu function in the classical risk model

In this paper, we propose a new efficient method for estimating the Gerber–Shiu discounted penalty function in the classical risk model. We develop the Gerber–Shiu function on the Laguerre basis, and then estimate the unknown coefficients based on sample information on claim numbers and individual claim sizes. The convergence rate of the estimate is derived. Some simulation examples are illustrated to show that the estimate performs very well when the sample size is finite. We also show that the proposed estimate outperforms other estimates in the simulation studies.     

基于分工理念的开发性普惠金融：功能定位与比较优势

开发性普惠金融建立在不同层次经济主体之间的产业链分工合作基础之上。经济思想史的研究表明,人类每一次分工形式的变化,都带来了经济发展质的飞跃。分工促进经济增长、劳动分工促进规模农业发展以及金融影响劳动分工的思想能够成为开发性普惠金融的理论基础。为了解决经济发展不平衡、不充分问题,应将普惠金融纳入基于供给侧结构性改革的新的劳动分工范畴,在农村及欠发达地区建立新型集体化生产经营方式。为欠发达地区、欠发达产业特别是农村经济的转型升级提供金融支持是开发性普惠金融的功能定位。开发性普惠金融的比较优势在于：促进欠发达地区产业兴旺,从根本上改善城乡收入不平等状况,缓解农户和农村小微企业的融资约束,有助于金融机构实现风险控制与收益的有机统一。