The Spectrum of Random Matrices

The Frobenius eigenvector of a positive square matrix is obtained by iterating the multiplication of an arbitrary positive vector by the matrix. Bródy (1997) noticed that, when the entries of the matrix are independently and identically distributed, the speed of convergence increases statistically with the dimension of the matrix. As the speed depends on the ratio between the subdominant and the dominant eigenvalues, Bródy's conjecture amounts to stating that this ratio tends to zero when the dimension tends to infinity. The paper provides a simple proof of the result. Some mathematical and economic aspects of the problem are discussed.     

Incorporating the Dominant Social Paradigm into Government Technology Transfer Programs

SUMMARY

This paper examines problems implicit in transferring technology from developed countries to lesser developed countries. This is done from the perspective of the dominant social paradigm, and argues that the limited success of governmental transfer programs can be attributed to paradigm conflicts between the developer of technology and the recipient. The conclusion suggests that the effectiveness of government technology transfer programs can be improved if a dual approach is adopted. For transfers to lesser developed countries, the initial step should be to understand the differences in paradigms, and this should be followed by the development of appropriate technologies that enhance the development potential of the recipient in terms of the recipients' values and worldviews.     

我国水果产业及主要出口产品品目的国际竞争力分析

本文综合运用国际市场占有率及显示性比较优势指数等指标对我国水果产业及主要出口产品品目的国际竞争力进行了分析。研究结果表明,我国水果产业在整体上不具有竞争优势,在一些水果产品的具体品目上具有一定的竞争优势;但各种水果产品的竞争优势有很大差别,果制品的竞争优势好于鲜果与干果产品;而在我国具有极强竞争优势的水果品目都不是世界主要贸易品目。     

Mechanism design in queueing problems

Summary.   A well-known result in incentive theory is that for a very broad class of decision problems, there is no mechanism which achieves truth-telling in dominant strategies, efficiency and budget balancedness (or first best implementability). On the contrary, Mitra and Sen (1998), prove that linear cost queueing problems are first best implementable. This paper is an attempt at identification of cost structures for which queueing problems are first best implementable. The broad conclusion is that, this is a fairly large class. Some of these first best implementable problems can be implemented by mechanisms that satisfy individual rationality. Received: October 19, 1999; revised version: March 13, 2000.     

End-User Contribution to Logistics Value Co-Creation: A Series of Exploratory Studies

ABSTRACT

Recently, retailers have been investing in technology-based platforms such as mobile applications to involve more of their customers in logistical value co-creation activities. Therefore, it would be important to guide these efforts by providing the retailers with a list of various consumer logistics value co-creation activities and help them better organize their technological investments by categorizing these functions. The objective of this study is to explore the logistics activities through which the end users can contribute to co-creation of value based on the notions of Service-Dominant Logic. A series of 4 exploratory survey studies revealed 10 end-user logistics functions and important implications for practice.     

Extending perfect timing theory: not just one but several windows of opportunity

ABSTRACT

A recent study investigated the optimal time to enter emerging industries, introducing the existence of a window of opportunity for firms. The present study doubted its validity in a situation labeled as ‘long-tail industry life-cycle’. It is proposed that the concept ‘window of opportunity’ could be valid also in long-tail industry life-cycle situations, but that in these cases several windows of opportunity could emerge, at the subsystem or component level, after the establishment of a dominant design at the product level. The crux of the problem, as detailed in the rest of the paper, is represented by product architecture.     

世界证券期货交易所公司化改革对我国的启示

通过对世界证券期货交易所公司化改革内在动因的研究,认为交易所竞争、电子信息技术发展和融资便利是交易所公司化的直接原因,并对公司化后的交易所自律监管模式进行了探讨,总结了公司化后交易所自律监管的三种模式,提出了中国交易所公司化改革的具体战略步骤。     

On the anti-competitive effects of quantity discounts

We analyze the competitive effects of quantity discounts in an asymmetric duopoly. We find that for a sizeable set of parameter values, quantity discounts harm the smaller firm and reduce consumers' surplus. They can even decrease social welfare, i.e. the sum of producers' and consumers' surpluses. However, the circumstances in which quantity discounts may decrease social welfare are limited and difficult to identify in practice.     

论管理会计逻辑和生产实际逻辑的不整合性

企业的生产决策信息主要依赖于管理会计提供,但作为现今的管理会计与生产实践的脱节是难以向决策者提供正确信息的。这主要是过去的管理会计的逻辑与生产的逻辑不整合性造成的,或者说是管理会计的目标与生产的目标不一致造成的。为此我们一定要把如何构筑企业价值和竞争能力作为核心去建立新的管理会计理论体系,要依据生产的逻辑来构建管理会计的逻辑。     

International Accounting Education Standards Board: Organisational legitimacy within the field of professional accountancy education

This research considers the organisational legitimacy of the International Accounting Education Standards Board (IAESB), and whether it is perceived or accepted as the appropriate standard setter for professional accountancy education across the globe. We define the organisational field in which the IAESB operates to influence education practice, and frame the research through the lens of both strategic and institutional traditions of organisational legitimacy. In this context, we examine the extent to which 21 selected professional accountancy bodies, operating in diverse jurisdictions across the globe, disclose compliance with IAESB pronouncements. Our results show that disclosed compliance does not always indicate conformity of practice amongst the professional bodies which have obligated themselves to comply with International Education Standards (IES). We discuss reasons for this varied immunity to IES practice and the impact this has on the IAESB achieving its self-declared objective of developing and influencing globally acceptable and implementable standards for professional accountancy education. This research should be useful to professional accountancy educationalists, and to the IAESB in pursuit of its objective.