农村最低生活保障制度的瞄准问题——基于文献与政策的分析

瞄准的准确率不高是我国农村低保制度一大诟病。社会救助对贫困的瞄准机制是世界性难题,我国各地作了多种尝试和探索。统筹低保标准与覆盖面关系、严格进行责任追究、将低保对象认定工作外包或委托给社会力量、对低保对象进行能力建设等是破解瞄准的准确率不高的有效途径。     

Customized Targeting Strategies for Category Coupons to Maximize CLV and Minimize Cost

It is standard procedure to use short-term measures for designing customized marketing campaigns and evaluating their success. We consider the integration of customer lifetime value (CLV) thinking into the category selection problem for targeted coupons. This problem involves two primary considerations: should the coupon be a category-specific one? – and, if so, should short-term or rather long-term objectives govern the choice of category? Our paper is the first to address these questions by analyzing the effects of different customized targeting strategies for category coupons on short-term marketing costs and long-term CLV using an analytical model. We develop these targeting strategies with the help of a data-driven customer segmentation framework based on the dimensions of churn, frequency, and loyalty. Using data from a German hypermarket chain, we identify four refined targeting strategies that enable multi-category retailers to exploit the full potential of customized marketing by optimizing the trade-off between marketing cost and CLV considerations. Our analysis reveals that the targeting strategy most likely to be employed by retail practice – as compared with the one most commonly used – can yield a substantially higher CLV even as it reduces wasteful marketing costs.     

通货膨胀目标制的实证研究

通货膨胀目标制作为一个货币政策框架已经在很多国家得到实施,总体而言是比较成功的,国外不少学者对通货膨胀目标制的实施状况进行了实证研究,本文从影响一国通货膨胀目标制决策的因素以及支持和反对通货膨胀目标制3个角度对目前的实证研究状况进行概括。     

Towards a global food aid compact

Existing international mechanisms governing food aid are dysfunctional and outdated. A reasonably straightforward alternative could readily rectify the problem of an ineffective global food aid governance system. In this paper, we outline the basic design of such a Global Food Aid Compact.     

DO WE REALLY NEED BOTH BEKK AND DCC? A TALE OF TWO MULTIVARIATE GARCH MODELS

Abstract The management and monitoring of very large portfolios of financial assets are routine for many individuals and organizations. The two most widely used models of conditional covariances and correlations in the class of multivariate GARCH models are BEKK and dynamic conditional correlation (DCC). It is well known that BEKK suffers from the archetypal ‘curse of dimensionality’, whereas DCC does not. It is argued in this paper that this is a misleading interpretation of the suitability of the two models for use in practice. The primary purpose of this paper is to analyse the similarities and dissimilarities between BEKK and DCC, both with and without targeting, on the basis of the structural derivation of the models, the availability of analytical forms for the sufficient conditions for existence of moments, sufficient conditions for consistency and asymptotic normality of the appropriate estimators and computational tractability for ultra large numbers of financial assets. Based on theoretical considerations, the paper sheds light on how to discriminate between BEKK and DCC in practical applications.     

Does EU rural expenditure correspond to regional development needs?

The EU offers a complex system of rural development interventions as part of its Common Agricultural Policy. A Common Monitoring and Evaluation Framework (CMEF) has been developed for the programming period 2007–2013 in response to challenges faced with the evaluation of rural development measures in earlier programming periods.Statistical and multivariate analysis of CMEF baseline (regional characteristics) and input (expenditure) indicator data at the NUTS2 subdivision level is used to compare four typical expenditure allocation patterns (Competitiveness, Environment, Rural Viability, Equal Spending) in terms of associated regional characteristics and development trends.The results suggest expenditure priorities are generally in line with regional needs and that there are some positive development trends, for example higher increase of agricultural labour productivity in the Competitiveness Group, while for environmental topics the level of data required remains unsatisfactory for trend assessment. 17% of the regions have a budget allocation pattern deviating from other regions with similar characteristics, which could indicate ineffective priority setting. Consistent CMEF data over multiple programming periods would be desirable to support the relationships found and to facilitate time series analysis, but this seems questionable given that the European Commission has discontinued the CMEF in 2014 with further adaptations for the 2014–2020 programming period underway.     

Inflation Targeting - the Holy Grail of Monetary Policy?

Inflation targeting is a statement about the objective of central bank policy and not about operating procedures. Its success depends not only on the actions of the central bank, but requires a broad consensus concerning the proper role of monetary policy in the economy. It also requires the backing of a sound fiscal policy. As countries differ both in economic structure and monetary transmission mechanism, the implementation of inflation targeting must be country specific. Instability over time in the transmission mechanism also implies that inflation targeting strategies must evolve to avoid the fate of previous monetary policy targeting practices.     

通货膨胀目标制:理论、实践及其启示——兼论我国房地产市场调控

通货膨胀目标是由官方公开宣布未来一段时间内需要达到的通货膨胀目标或区间,明确承认低的、稳定的通货膨胀率是货币政策的首要长期目标。从长期看,中央银行可以产生系统的影响的惟一宏观经济变量只有通货膨胀率。没有中央银行的默许,通货膨胀就无法扎根。虽然石油价格冲击、持久干旱、升高的税收或者新的政府法令都有可能推动物价指数上升,除非中央银行对此不闻不问,否则,通货膨胀是不可能长久存在的。     

社会保障制度改革的一个政策工具:"目标定位"

20世纪70年代以来,西方福利国家普遍经历了深刻的危机并由此进行了全面的改革.在改革的过程中,"目标定位"政策得到了广泛的应用,成为福利国家削减开支的重要政策工具.本文首先分析了目标定位的含义、兴起的背景,进而分析了目标定位的各种措施以及优越性;然后结合一些案例国家的改革情况介绍了目标定位的诸多方法,包括传统方法以及创新的方法,并指出了创新方法的优势;然后从纵向和横向两个方面探讨了目标定位的绩效评估问题;最后对目标定位中存在的问题进行了研究并给出了政策建议.     

Interaction effects of targeted agri-environmental payments on non-marketed goods and services under climate change in a mountain region

Targeting of agri-environmental measures (AEMs) is a key to increasing the cost-effectiveness of governmental support for biodiversity conservation and the provision of ecosystem services from agriculture. Existing literature, however, often focuses on single measures without considering that policies are usually bundles of different measures addressing multiple non-marketed goods and services. Thus, interaction effects of a set of policies in a given policy mix may influence the cost-effectiveness of single measures. Recently, Swiss agricultural policy was redesigned using the Tinbergen rule as its basis, i.e., a single measure for each policy goal, including additional targeted direct payments. This facilitates testing for interaction effects of multiple targeted AEMs. Here we use a social-ecological, agent-based modelling framework to assess interaction effects of these agricultural policies while accounting for climate change impacts in our analysis. The results from our case study in a mountain region show that ecosystem service provision increases with targeted payments. However, interaction effects of the different targeted policies affect the provision levels of all goods and services. In particular, changes at the extensive margin, i.e., the total amount of land that is under production, largely determine the amount of ecosystem services provided. Thus, climate change driven productivity increases and policies that keep land in production may substantially support the provision of non-marketed goods and services in marginal agricultural production regions with a high potential for land abandonment. Consequently, the effectiveness of targeted policy measures should also consider changes at the extensive margin and be assessed in the context of bundles or portfolios of different policy measures.