用竞争对抗来激发创新

在文艺复兴时期,卓有成效的竞争对抗曾激发了大量的艺术创新,通用电气全球研究团领导人也认为,竞争对抗已帮助其公司开发出更好的产品和服务     

A destination VAT for CIS trade

This paper was originally produced as a co-operative study between the Fiscal Affairs Department and the European II Department of the International Monetary Fund. It is intended for inclusion in a special issue on fiscal policy of the journal MOCT-MOST, Economic Policy in Transitional Economies (Kluwer Academic Publishers). The authors would like to thank Henri Lorie, of the European II Department, and John Crotty and James Walsh, of the Fiscal Affairs Department, for their extensive contributions to the analysis. They also wish to thank the numerous staff members of the two departments who made factual contributions to this effort.     

The engine of growth or its handmaiden?

This paper presents an analysis of time-series data for the countries in the Summers-Heston (1991) data set, in an attempt to ascertain the evidence for or against the export-led growth hypothesis. We find that standard methods of detecting export-led growth using Granger-causality tests may give misleading results if imports are not included in the system being analyzed. For this reason, our main statistical tool is the measure of conditional linear feedback developed by Geweke (1984), which allows us to examine the relationship between export growth and income growth while controlling for the growth of imports. These measures have two additional features which make them attractive for our work. First, they go beyond meredetection of evidence for export-led growth, to provide a measurement of itsstrength. Second, they enable us to determine the temporal pattern of the response of income to exports. In some cases export-led growth is a long-run phenomenon, in the sense that export promotion strategies adopted today have their strongest effect after eight to 16 years. In other cases the opposite is true; exports have their greatest influence in the short run (less than four years). We find modest support for the export-led growth hypothesis, if “support” is taken to mean a unidirectional causal ordering. Conditional on import growth, we find a causal ordering from export growth to income growth in 30 of the 126 countries analyzed; 25 have the reverse ordering. Using a weaker notion of “support”—stronger conditional feedback from exports to income than vice versa, 65 of the 126 countries support the export-led growth hypothesis, although the difference in strength is small. Finally, we find that for the “Asian Tiger” countries of the Pacific Rim, the relationship between export growth and output growth becomes clearer when conditioned on human capital and investment growth as well as import growth.     

Numerosity: Forward and Reverse Stock Splits

Abstract

Individuals have a tendency to fixate on large numbers and ignore other relevant information in their decision making process. The numerosity heuristic, a cognitive bias, is the first behavioral hypothesis to explain why investors prefer to receive more shares (rather than less shares) in a stock split even though the aggregate economic value is the same. For forward splits, after controlling for the positive signaling of improved earnings growth and liquidity from the split announcement, the stock price reacts positively to the larger number of shares issued. More importantly, the use of a dual class numerosity model can explain why most conventional hypotheses fail to explain the negative stock price reaction to reverse splits. Given a typical bearish outlook associated with a reverse stock split, investors’ cognitive resources have already been conditioned to derive a systematic conclusion to sell the stock at the higher price. Focusing only on large stock price numerosity, investors are incorrectly inferring a higher investment value. As the high numerosity encourages bearish investors to sell at the higher perceived investment value, the stock returns react more negatively to the higher post-reverse split price level. In both forward and reverse split cases, investors react to high numerosity.     

Price transmission and market integration: vertical and horizontal price linkages for salmon

Relationships between prices are of interest when testing for market integration as well as analyses of supply chains. A feature that has received little attention is that if two supply chains are linked by market integration at some stage, then the whole supply chain will be linked. Furthermore, the leading price in such a system can be in one supply chain and will not be revealed in market integration studies or analysis of a single supply chain. An empirical analysis is provided for the supply chains for salmon which originates in Norway and the United Kingdom and is then sold at retail level in France as smoked salmon. We find a high degree of price transmission in both supply chains, as well as integrated markets.     

Depletion or expansion? Understanding the effects of support policy use on employee work and family outcomes

Past research on the effects of employees' use of work–family support policies tends to draw on a depletion perspective suggesting that using these policies may reduce work–family conflict. The emphasis on depletion fails to consider the expansion perspective that assumes that using work resources may enrich family functioning. Using a sample of 113 matched employee–supervisor pairs and a 1‐month separation between predictor and criterion measurement, we found support for the expansion rather than the depletion perspective. Specifically, the relationships between support policy use and employee job satisfaction and family efficacy (but not organisational citizenship behaviour) were mediated by work‐to‐family enrichment; these effects were realised only for employees with high levels of family identity. In contrast, no support was found for family‐to‐work conflict as a mediator of the model.     

Technical Synergies and Trade-Offs Between Abatement of Global and Local Air Pollution

In this paper, we explore the synergies and tradeoffs between abatement of global and local pollution. We build a unique dataset of Swedish combined heat and power plants with detailed boiler-level data 2001–2009 on not only production and inputs but also on emissions of \(\hbox {CO}_{2}\) and \(\hbox {NO}_{\mathrm{x}}\). Both pollutants are regulated by strict policies in Sweden. \(\hbox {CO}_{2}\) is subject to the European Union Emission Trading Scheme and Swedish carbon taxes; \(\hbox {NO}_{\mathrm{x}}\)—as a precursor of acid rain and eutrophication—is regulated by a heavy fee. Using a quadratic directional output distance function, we characterize changes in technical efficiency as well as patterns of substitutability in response to the policies mentioned. The fact that generating units face a trade-off between the pollutants indicates the need for policy coordination.     

The Impact of Personal Resources and Job Crafting Interventions on Work Engagement and Performance

This study examined the impact of organizational interventions on work engagement and performance. Based on the job demands–resources model, we hypothesized that a personal resources intervention and a job crafting intervention would have a positive impact on work engagement and performance. We used a quasi‐experimental design with a control group. Primary school teachers participated in the study at two time points with six weeks between the measurements ( N = 102). The results showed that the personal resources intervention had a positive causal effect on work engagement. Additionally, the joint personal resources and job crafting intervention had a positive impact on self‐ratings of job performance. We discuss the implications of these findings for theory and practice. © 2015 Wiley Periodicals, Inc.     

Fear and Loathing (of others): Race,Class and Contestation of Space in Washington,DC

Our article explores the cultural politics of public space and the placemaking politics of urban redevelopment in the Atlas District of Washington, DC, a popular commercial district undergoing rapid gentrification. The major questions we address are, how do race and class impact the ways public space is controlled and/or managed in the context of rapid changes in the built, economic and social environments of the neighborhood? What role do those narratives play in justifying changes in and management of public space? We focus on uses of public space and describe how various forms of power are linked to the control of space in the context of gentrification. Our analysis focuses on designated public space in the Atlas District—the Starburst Plaza. By analyzing everyday practices around community control at the Starburst Plaza, this case study focuses on the discrete methods by which the symbolic and material inequities promulgated by the neoliberal state are reconfigured through struggles to define and manage contested public spaces.