内生创新努力、本土技术溢出与长三角高技术产业创新绩效

基于新增长理论的内生创新努力,分产业维和区域维运用1997—2006年面板数据,本文重点分析了本土技术溢出对长三角高技术产业创新绩效的影响,从中发现:从产业维角度看,长三角产业专业化集聚环境下的本土技术溢出效应呈弱的负外部性;从区域维角度看,作为创新极的上海对江(苏)浙(江)具有正的技术溢出效应,浙江能从上海和江苏的技术溢出中受益,而江苏受益于上海的同时也承受来自浙江的负外部性作用。     

以贯彻新会计准则为契机，提高会计信息质量

新的会计准则施行后,对会计信息质量的提高起到极大的促进作用。指出目前制约会计信息质量的因素主要有公司治理结构的缺陷、会计信息失真带来的收益与损失不对称、剥离与模拟等会计创新的负面影响等,分析了新会计准则。对于提高会计信息质量的要求。基于此,提出了现阶段提高会计信息质量的几点措施。     

Blocked-Error-R 2: A Conceptually Improved Definition of the Proportion of Explained Variance in Models Containing Loops or Correlated Residuals

Bentler and Raykov (2000, Journal of Applied Psychology 85: 125–131), and Jöreskog (1999a, http://www.ssicentral.com/lisrel/column3.htm, 1999b http://www.ssicentral. com/lisrel/column5.htm) proposed procedures for calculating R ² for dependent variables involved in loops or possessing correlated errors. This article demonstrates that Bentler and Raykov’s procedure can not be routinely interpreted as a “proportion” of explained variance, while Jöreskog’s reduced-form calculation is unnecessarily restrictive. The new blocked-error-R ² (beR ²) uses a minimal hypothetical causal intervention to resolve the variance-partitioning ambiguities created by loops and correlated errors. Hayduk (1996) discussed how stabilising feedback models – models capable of counteracting external perturbations – can result in an acceptable error variance which exceeds the variance of the dependent variable to which that error is attached. For variables included within loops, whether stabilising or not, beR ² provides the same value as Hayduk’s (1996) loop-adjusted-R ². For variables not involved in loops and not displaying correlated residuals, beR ² reports the same value as the traditional regression R ². Thus, beR ² provides a conceptualisation of the proportion of explained variance that spans both recursive and nonrecursive structural equation models. A procedure for calculating beR ² in any SEM program is provided.     

A reference-dependent representation with subjective tastes

Experimental and empirical evidence documents instances where the presence of an inferior option in a menu increases the attractiveness of the better options from that menu and thus distorts the normative ranking across menus. We analyze the case when in addition to this so called context-effects bias there is also a concern for flexibility, in the spirit of the literature initiated by Kreps (1979) and Dekel et al. (2001). Since the context-effects bias and the desire for flexibility both increase the inclination of a decision maker to choose larger menus, our analysis allows the disentangling of the effect of the behavioral bias from the effect of the rational desire from flexibility. We find a weak condition on the set of ex post preferences under which the two effects are identifiable. We show that our representation is essentially unique. From a methodological viewpoint, our paper provides a novel technique of identifying probabilities on the state space of subjective uncertainty introduced by Dekel et al. (2001) when this state space is infinite. This method renders the infinite state space essentially finite with respect to a certain salient property.     

Interregional Inequality Dynamics in Mexico

Abstract

This paper examines 60 years of regional income inequality dynamics across the states of Mexico. Drawing on recent developments in exploratory spatial data analysis (ESDA) we examine the role of spatial clustering and heterogeneity in the evolution of regional inequality. We pay particular attention to the choice of the regionalization scheme that has been applied in previous work and we suggest a number of new approaches to evaluate the sensitivity of inferential conclusions to this choice. We also investigate if temporal shifts in equality are reflected in the NAFTA era.

Dynamique de l'inégalité interrégionale au Mexique

Résumé la présente communication se penche sur la dynamique des inégalités régionales entre les revenus pendant 60 ans dans les états du Mexique. Sur la base de développements récents dans les analyses exploratoires des données spatiales (ESDA), nous examinons le rôle du groupage et de l'hétérogénéité spatiaux dans l’évolution des inégalités régionales, en nous penchant tout particulièrement sur le choix du plan de régionalisation appliqué à des travaux précédents, et en proposant un certain nombre de méthodes nouvelles pour évaluer la sensibilité de conclusions déductives sur ce choix. En outre, nous tentons d’établir si des changements temporels dans les inégalités sont reflétés dans l’ère de NAFTA.

Dinámica de la desigualdad interregional en Méjico

Extracto Este trabajo examina 60 años en la dinámica de la desigualdad regional de ingresos a través de los estados de Méjico. Haciendo uso de desarrollos recientes en el análisis exploratorio de datos espaciales (ESDA) examinamos la función del agrupamiento espacial y la heterogeneidad en la evolución de la desigualad regional. Prestamos particular atención a la elección del esquema de regionalización que se ha aplicado en trabajo anterior y sugerimos varios planteamientos nuevos para evaluar la sensibilidad de conclusiones inferenciales de esta elección. También investigamos si los cambios temporales en igualdad se reflejan en la era NAFTA (Tratado de Libre Comercio de América del Norte).

     

Interaction effects of dual organizational commitment on retention in international assignments: the case of Western expatriates in Vietnam

The purpose of this study is to examine the interaction effects of two commitment foci (parent company and local operation commitment) on a focal work behavior (retention in an international assignment). Accordingly, this study formulated and tested four hypotheses by using hierarchical regression, moderated regression analyses and plots of two-way interactions. The data were gathered from 471 Western expatriates working for the subsidiaries of multinational companies in Vietnam. The results confirmed that all components (affective, normative and continuance) of parent company commitment and local operation commitment positively predicted retention in international assignments; however, the retention was more driven by the parent company commitment. Besides, the relationships between two components (affective and continuance) of local operation commitment and retention were moderated by the corresponding components of parent company commitment. The findings improve the understanding of dual commitment's links to work behaviors in international business contexts. Moreover, as to the practical implication, multinational companies were recommended to be aware of the level of expatriate commitments to two foci in order to reduce the rate of premature return.     

Personality and the creativity of frontline service employees: linear and curvilinear effects

Abstract

Previous studies have investigated the relationship between the Five-Factor model of personality and creativity. As this model has been criticised for providing a limited account of an individual’s personality, this study considers additional personality traits that have recently been investigated in the literature as determinants of employee behaviour. Moreover, we also contribute to the existing body of literature by conducting this study in a service setting, for which we predict personality traits will exert differentiated effects on creativity when compared to other settings. Finally, while past research has focused on linear effects, this study examines the existence of non-linear effects between personality and creativity. The results indicate that personality traits apart from the Five-Factor model have an impact on creativity and that the effects of several personality traits on the creativity of frontline service employees differ from those obtained in other settings. Lastly, the findings also show that five of the personality traits have non-linear effects on creativity, and this may be a stimulus for a new stream of research in the human resources literature.     

Coproducing healthcare: individual-level impacts of engaging citizens to develop recommendations for reducing diagnostic error

ABSTRACT

Coproduction has received considerable attention from scholars and practitioners in recent years. While theory and some research suggest that coproduction can have individual-level effects on participating lay actors, few studies have tested such hypothesized effects. This study seeks to add to the evidence base for collective coproduction. Using data from a randomized and controlled research project, it examines whether collective coproduction affects participants’ issue awareness, perceived empowerment, trust in service professionals, and support for coproduction. The results provide empirical evidence that collective coproduction can significantly increase issue awareness, empowerment, and trust. The results for support of coproduction are mixed.     

Financial development,portfolio investments and the real economy in Africa

According to the conservative view, capital flows enhance economic growth. Focussing on Africa’s real economy, this study investigates the linkage between portfolio investments and real sector growth, and whether financial sector development strengthens this association. The study covers 30 countries over the period 1990–2017. We adopt the Lewbel instrumental variable general method of moments (IV-GMM) two-step robust estimator, which relies on heteroscedasticity for identification, while dealing with instrument insufficiency, unavailability, endogeneity and omitted variable bias. We found that portfolio equity has no growth impact on Africa’s real sector. Debt flows deter the growth of the overall real sector as well as the manufacturing and industrial sectors, but have no impact on agriculture and service growth. We found that financial development does strengthen the positive association between capital flows and economic growth, but this is dependent on the type of sector and portfolio investment, as well as on the degree of financial development. We control for known determinants of economic growth.     

Is bitcoin a safe haven or a hedging asset? Evidence from China

Based on daily data about Bitcoin and six other major financial assets (stocks, commodity futures (commodities), gold, foreign exchange (FX), monetary assets, and bonds) in China from 2013 to 2017, we use a VAR-GARCH-BEKK model to investigate mean and volatility spillover effects between Bitcoin and other major assets and explore whether Bitcoin can be used either as a hedging asset or a safe haven. Our empirical results show that (i) only the monetary market, i.e., the Shanghai Interbank Offered Rate (SHIIBOR) has a mean spillover effect on Bitcoin and (ii) gold, monetary, and bond markets have volatility spillover effects on Bitcoin, while Bitcoin has a volatility spillover effect only on the gold market. We further find that Bitcoin can be hedged against stocks, bonds and SHIBOR and is a safe haven when extreme price changes occur in the monetary market. Our findings provide useful information for investors and portfolio risk managers who have invested or hedged with Bitcoin.