A Spatiotemporal Autoregressive Price Index for the Paris Office Property Market

This article applies the spatiotemporal hedonic approach to the analysis of office transaction prices in the Paris property market ( i.e ., central Paris and its inner suburbs). The analysis focuses primarily on the market's two main business districts (the Central Business District and the La Défense District). We find that spatial and temporal dependence effects are strongly present in these submarkets. Additionally, we propose a hybrid method for incorporating a temporal regime switch into the spatiotemporal autoregressive model. The regime switching around 1997 ( i.e. , in the presence of temporal heterogeneity) substantially affects the significance of spatial and temporal dependences. Finally, we build a new price index that incorporates both spatiotemporal dependences and temporal heterogeneity. This index differs strongly from the usual hedonic price index.     

Neue Anforderungen an optimierende Energiesystemmodelle für die Kraftwerkseinsatz- und Zubauplanung bei begrenzten Netzkapazitäten

Recent changes in energy economic frameworks conditions lead to new requirements for energy systems models. Particularly in Germany, structural and locational changes in the power plant sector can be observed. Above all, this is due to the liberalisation process entailing the legal unbundling of system operators and generation companies as well as to the ambitious aims for the extension of wind energy. Consequently, modelling energy systems as single node systems, in which network constraints are neglected, can lead to suboptimal results. Most energy systems models offer the possibility to limit interregional energy exchange capacities. However, these so-called transhipment models normally neglect the actual load flows. Yet, there are several possibilities to adequately consider the characteristics of power transmission. In this paper, the most popular approaches, which are used in particular technical applications, such as the AC- (Alternating Current), the DC- (Direct Current) and the PTDF- (Power Transfer Distribution Factors) approach are introduced and discussed with respect to their application in energy systems models. In addition, first experiences with their implementations are presented.     

The Qualitative and Quantitative Significance of Non-Tariff Barriers: An ERP study of Norway

Along with a de-escalation of tariffsin most industrialized countries, a wide range of Non-Tariff Barriers (NTBs) has been developed. NTBs are more challenging to study than tariffsbecause they are more difficult to detect and measure, and because the qualitative functioning of NTBs varies according to their design. In particular, equivalent tariff rate estimates on import quantity restrictions will endogenously react to domestic market shifts, for instance as a result of shifts in other commercial policy measures. Besides emphasizing the quantitative dominance of NTBs to tariffs in the Norwegian trade policy system, this study of Effective Rates of Protection clearly illustrates that it may be critical for trade policy studies to model qualitatively the interdependency between different policy measures.     

Exploration versus exploitation: Emotions and performance as antecedents and consequences of team decisions

We analyze performance and emotions as antecedents and consequences of team strategic decisions to explore a new routine versus exploiting an existing one. In a laboratory study, we examine team decision making over time and draw causal inferences about the relationships among team emotions, team performance, and explore–exploit decisions. We use self‐report data to measure team emotions, and validate results with psychophysiological data. We find that declines in performance increase the likelihood that teams decide to explore new routines rather than exploit existing ones. We also find a marginal positive effect of positive emotions, as measured by both self‐report and psychophysiological data, on team decisions to explore a new routine. Further, teams successful at implementing new routines report increased positive emotions, as measured by the self‐report data. This relationship is fully mediated by performance change. Copyright © 2015 John Wiley & Sons, Ltd.     

Who participates in tax avoidance? Evidence from Swedish microdata

This article empirically examines why not all individuals participate in tax avoidance. We use rich Swedish administrative panel data on all taxpayers, with a link between corporate and individual tax returns and document that few individuals utilize legal and observable tax avoidance opportunities. Our results show that there are several frictions in tax avoidance participation. In addition to monetary benefits from tax avoidance (incentives), the opportunity to participate in tax avoidance (access), as well as information and knowledge about these opportunities (awareness), are important factors for the individual’s tax avoidance decision. We further show that tax avoidance spreads within communities. The impact of the local network is stronger for non-commuters who live and work in the same municipality.