The asymmetric information and price manipulation in stock market

The interaction between asymmetrically informed traders has been mostly investigated in theoretical frameworks. Not only there are relatively few empirical studies but, if any, the mostly focus on cross-sectional analysis and use very short samples. In this study, we blend theoretic with empirical, and propose a new signalling system of turning points in the economy to examine the extent of volatility of these markets relative to their tranquil periods. The signalling system proposed here is based on the Markov-switching model. Differing from the existing literatures, the study employs three phases and time-varying transition probability, and captures the states of volatility. After examining the causality between high volatility and foreign portfolio investment (FPI) by using moving average and generalized autoregressive conditional heteroskedasticity, the portfolio's profitability of FPI and individual investors in different periods are compared. Finally, the investigation of FPI's leading effect is studied.     

Disability insurance and unemployment insurance as substitute pathways

In this article, we estimate the degree of substitution between enrolment into Disability Insurance (DI) and Unemployment Insurance (UI) in the Netherlands. Starting in the 1990s many policy measures aimed at reducing DI enrolment, and increase labour force participation. We quantify whether these policy measures have led to a reduction in hidden unemployment in DI. A side effect of the reforms may be increased pressure on UI. Therefore, we simultaneously estimate reverse substitution, that is, hidden disability in UI. To this end, we employ a sample of firms in the Dutch AVO database from the period 1993 to 2002. Using instrumental variables in a bivariate Tobit specification, we identify the hidden components in both respective schemes. The estimation results indicate that about 3% of all dismissals took place through DI, which implies that about one quarter of the DI enrolments observed in our sample in fact consists of hidden unemployment. We find no evidence for reverse substitution of disabled persons ending up in UI.     

中国西部地区生态环境逆向演替之分析

在国家实施西部大开发的过程中,生态环境恢复与重建显得格外重要。为此,本文深入分析了环境与可持续发展之间的关系,其一是人类的发展离不开自然生态环境而独立存在;其二是生态环境是支撑发展的最基本的条件;其三是确立可持续发展观将更有利于生态环境的长期改善。笔者研究了西部退耕还林(草)地区环境问题的现状及其产生的原因,确立能够确保西部地区脱贫、发展与可持续发展实现的环境改善目标、改善路径和可行的对策措施,以建立可持续发展条件下的西部地区的环境整治与重建体系,从而更有利于可持续发展基础的稳固与坚实。     

The dynamics of transitions in socio-technical systems: A multi-level analysis of the transition pathway from horse-drawn carriages to automobiles (1860–1930)

This article investigates transitions at the level of societal functions (e.g. transport, communication, housing). Societal functions are fulfilled by socio-technical systems, which consist of a cluster of aligned elements, e.g. artefacts, knowledge, user practices and markets, regulation, cultural meaning, infrastructure, maintenance networks and supply networks. To understand how transitions from one socio-technical system to another come about, the article describes a conceptual multi-level perspective. The perspective is illustrated with a historical case study: the transition from horse-drawn carriages to automobiles in the USA (1860–1930). The case study shows that technological substitution approaches to this transition are too simple, because they neglect the electric tram and bicycle, which acted as important stepping stones. The case study also corrects another mistake, namely that the gasoline car won by chance from steam and electric automobiles. It will be shown that particular niches played a crucial role in this competition, as well as the wider socio-technical context. The case study deviates on three points from the multi-level perspective. These deviations are used to conceptualize a particular transition pathway, called ‘de-alignment and re-alignment’.     

Content analysis of open innovation communities using latent semantic indexing

The internationalisation of corporate research is an issue with a large impact on strategic decision-making within the research-intensive pharmaceutical industry. However, sector-wide comparative statistics on the whereabouts of corporate research activities and the geographic distribution of their research partners is scarce. This paper describes the international research profiles of Europe's top 10 largest multinational pharmaceutical companies based on publication counts and author address information drawn from the thousands of pharmaceutical research articles published in 2005–2006. The results provide relevant aggregate-level background intelligence for strategic analysis of the industry's internationalisation processes and research cooperation patterns. The overall statistics indicate that international research activity of European industry is significantly more oriented towards the US science base than vice versa. Company-level statistical data on the research cooperation involving each company's central research centres based in country of corporate headquarters, reveal quite distinctive geographical characteristics alongside differential preferences for in-house or external research partners.     

Book review

Built by Japan: Competitive Straegies of the Japanese Construction Industry, Fumio Hasegawa & Shimizu Group FS New York, John Wiley & amp; Sons, 1988, 204 pp., US$25.00.

Technological Change at Work Ian McLouglin & Jon Clark Milton Keynes, Open University Press, 1988, 202 pp., Pb £9.00, Hb £25.00.

Enterprising Innovation: An Alternative Approach Veronica Mole & Dave Elliott London, Frances Pinter, 1987, pp. 180.

Flexible Automation: The Global Diffusion of New Technology in the Engineering Industry Charles Edquist Jacobsson Oxford, Basil Blackwell, 1988, Hb £35.00.

Expert Systems: Strategic Implications and Applications A. Beerel Chichester, Ellis Horwood Ltd, 1988, 173 pp., £22.50.     

The Endurance and Eclipse of the Controlled Vote: A Formal Model of Vote Brokerage Under the Secret Ballot

Throughout much of mankind's experience with elections, vote brokers – local elites who direct the voting decisions of a subset of the electorate – have been able to make or break political careers. In various polities, brokers have thrived in spite of the secret ballot, a surprising outcome given that vote secrecy would ostensibly allow citizens to pocket the inducements offered by such individuals and vote their consciences anyway. To address this puzzle, we develop a framework for understanding the persistence and demise of vote brokerage under the secret ballot. In our model, a broker contracts with voters using an outcome contingent contract: some fixed benefit is promised to all voters sharing one of several observable profiles should the broker's candidate win the election. Using this framework, we demonstrate that the existence of brokerage depends on the size of the electorate contained within the jurisdiction controlled by the broker, with large jurisdiction sizes tending to drive brokerage out of existence. Moreover, we detail the manner in which the strategies employed by brokers depend on their economic power, the size of social groups, and ideological polarization. Empirical evidence from Minas Gerais, Brazil is used to evaluate the performance of the model.     

Schooling in a Corporate Society

This article defines a measure of the quality of life in the regional capitals of Poland and compares the results. This taxonomic measure is based on a set of diagnostic traits, including housing conditions, state of the natural environment, labor market, personal safety, and range of cultural services available. For this purpose, a set of variables from 2011 was observed for each regional capital. This research is important in defining the difference between our target cities from the standpoint of social development. It also allows us to classify the cities into groups based on the quality of life of their inhabitants.