丁家屋子地区孔店组高凝油增产措施选层技术

文章通过对丁家屋子地区孔店组高凝油测试资料进行分析,将储层分为四类,并对每类储层的试油工艺及效果进行了分析,找到了增产措施选层原则。     

An analytical model for the formation of economic clusters

A simple spatial economy derived from microeconomic foundations is presented to gain insight into the formation of economic clusters. In this model, the formation of economic clusters is a consequence of the competition between economic forces that are consistent with atomistic agents maximizing their utility. An analytic approach is used to obtain the evolution of economic clusters. With this approach, the number of clusters which will grow can be predicted. These results are derived in the traditional one-dimensional geometry and extended to the more realistic two-dimensional landscape.     

Solving models with external habit

Habit utility has been the focus of a large and growing body of literature in financial economics. This study investigates ways of accurately and efficiently solving the Campbell and Cochrane [1999. Journal of Political Economy 107, 205–251] external habit model. Solutions for this model based on a grid of values for the state variable are shown to converge as the grid becomes increasingly fine. Convergence is substantially faster if the price–dividend ratio is computed as a series of “zero-coupon equity” claims rather than as the fixed point of the Euler equation. Fitting the model to the term structure as well as to equity moments (as in [Wachter, J.A., 2005. A consumption-based model of the term structure of interest rates. Journal of Financial Economics, in press]) also results in faster convergence.     

Redressing gender inequality in employment: the national and sub-regional policy 'fit'

This article examines the 'fit' between policy development regarding gender inequality in employment at sub-regional and national (UK) level, in particular focusing on the experience of women. Drawing on research undertaken in Coventry and Warwickshire, the article explores the question of how policy development at sub-regional level fits with national policy, and whether the sub-region is an appropriate, or effective, level at which to develop policy on gender inequality in employment. It is argued that while there needs to be recognition of the limited ability of sub-regional policy to confront structural issues, policy development at this level does offer potential strengths in redressing both gender inequality in employment and the relative lack of a gender dimension in local economic development.     

外商投资与地区资本形成的东西部比较

本文的实证分析表明,外商在华投资的空间分布极不均衡,高度集中于东部地区,而这种不均衡直接导致对地 区资本形成的差异。缩小与东部发展的差距、促进西部地区资本形成的关键在于缩小东西部地区外资利用规模差异。     

合同诈骗罪的“非法占有”的解释和认定

根据刑法第224条的规定，行为人在主观上具有非法占有的目的是合同诈骗罪成立的必备要件。本文拟对“非法占有”的含义、非法占有目的的产生时间及其合同诈骗罪的具体认定相关问题作一探讨，以冀对刑法理论和刑事实务有所裨益。     

汉、英文字与人的思维方式

由于汉英两种语言分属不同的语系和文化体系 ,两种文字及构词方法对人的左右脑活动都产生不同作用 ,东西方人的思想方式的区别极可能与所使用文字的不同相关。     

Strongly stable networks

We analyze the formation of networks among individuals. In particular, we examine the existence of networks that are stable against changes in links by any coalition of individuals. We show that to investigate the existence of such strongly stable networks one can restrict focus on a component-wise egalitarian allocation of value. We show that when such strongly stable networks exist they coincide with the set of efficient networks (those maximizing the total productive value). We show that the existence of strongly stable networks is equivalent to core existence in a derived cooperative game and use that result to characterize the class of value functions for which there exist strongly stable networks via a “top convexity” condition on the value function on networks. We also consider a variation on strong stability where players can make side payments, and examine situations where value functions may be non-anonymous—depending on player labels.     

Management control systems and their effects on strategy formation at middle‐management levels: evidence from a U.K. organization

The relationship between management control systems (MCS) and the strategy process is a largely unexplored area of strategic management. This paper reports the findings of an in‐depth, longitudinal case study of a major British‐based organization operating within the increasingly globalized telecommunications industry. Informed by Simons' ( 1991 , 1994 , 1995 ) theoretical model of the strategy process–MCS relationship, the study examines the nature and extent of this relationship at middle‐ and lower‐management levels. Of particular interest were the effects that the design and use of three groups of MCS have on the development of new ideas and initiatives. Findings suggest that beliefs systems influence managers' initiation or ‘triggering’ decisions, the use of administrative controls affects the location of strategic initiatives and may lead to the polarization of roles, and simultaneous emphasis on a range of key performance indicators can create a bias towards one set of measures and against another. Copyright © 2002 John Wiley & Sons, Ltd.     

The impact of transport-and transaction-cost reductions on food markets in developing countries: evidence for tempered expectations for Burkina Faso

Reductions in transport and transaction costs are expected to have a major effect on the functioning of food markets in developing countries. For Burkina Faso, this is a relevant issue as it may have important consequences for the food markets in urban and rural deficit areas. A partial equilibrium model is presented to analyze the short-term effects of reduced costs on price formation, inter-regional cereal trade, and farmers' and traders' storage strategies. Our results show that the high expectations with regard to the direct effects of cost reductions on food prices and food availability require some nuance. The effects of a reduction of transport costs will be small. Moreover, also the unintended negative consequences on the competitive position of farmers and traders in other regions that do not profit from road construction should be taken into account. Finally, it is concluded that only if transport and transaction costs are reduced simultaneously, will both the consumers and farmers benefit significantly.