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101.
Diego Romero-Ávila 《Ecological Economics》2008,64(3):559-574
This paper investigates the time series properties of per capita CO2 emissions and per capita GDP levels for a sample of 86 countries over the period 1960-2000. For that purpose, we employ a state-of-the-art panel stationarity test which incorporates multiple shifts in level and slope, thereby controlling for cross-sectional dependence through bootstrap methods. Our analysis renders clear-cut evidence that per capita GDP levels are nonstationary for the world as a whole while per capita CO2 is found to be regime-wise trend stationary. The analysis of country-groups shows that for Africa and Asia, per capita CO2 is best described as nonstationary, while per capita GDP appears stationary around a broken trend. In addition, we find evidence of regime-wise trend stationarity in both variables for the country-groups consisting of America, Europe and Oceania. The results of our analysis carry important implications for the statistical modelling of the Environmental Kuznets curve for CO2, since the differing order of integration in both variables for the world as a whole and for Africa and Asia calls into question the validity of panel cointegration techniques which assume that both variables are nonstationary and cointegrated with one another. Cointegration techniques would not be appropriate either for the case of America, Europe and Oceania which are characterised by per capita GDP and CO2 emissions being stationary around a broken trend. Similar conclusions are reached when we analyse country-groups based on levels of development. Failure to properly characterise the time series properties of the data by not controlling for an unknown number of structural breaks and for cross-sectional dependence could be responsible for the fragility and lack of robustness surrounding the estimation of environmental Kuznets curves. 相似文献
102.
Diego Pérez‐López Ana Moreno‐Romero Ralf Barkemeyer 《Business Strategy and the Environment》2015,24(8):720-734
There has been a dramatic uptake of sustainability reporting (SR) and sustainability management practices over the last two decades, in turn raising questions about the relationship between external disclosure and internal practice of corporate sustainability. Previous literature has emphasized the role of external pressures in driving SR adoption. However, as recent practitioner surveys also identify the existence of internal motives for SR, a more comprehensive analysis of this relationship is needed. In order to address this issue, we develop a framework accounting for four company‐level SR configurations, resulting from different levels of importance of external and internal motives for SR. Then, four exploratory cases serve to illustrate these configurations and to describe the respective roles of SR at the company level. As considerable diversity among these SR practices is found, our findings point to the relevance of both external and internal motives in understanding SR contribution to corporate sustainability. Copyright © 2013 John Wiley & Sons, Ltd and ERP Environment 相似文献
103.
Starting from existing static decompositions of overall economic efficiency on nonparametric production and cost frontiers, this article proposes more comprehensive decompositions including several cost-based notions of capacity utilization. Furthermore, in case prices are lacking, we develop additional decompositions of overall technical efficiency integrating a technical concept of capacity utilization. These new efficiency decompositions provide a link between short and long run economic analysis and, in empirical work, avoid conflating inefficiency and differences in capacity utilization. An empirical analysis using a monthly panel of Chilean hydro-electric power plants illustrates the potential of these decomposition proposals. 相似文献
104.
Unemployment clusters across Europe's regions and countries 总被引:1,自引:1,他引:0
105.
In an industry where firms compete via supply functions, the set of equilibrium outcomes is large. If decreasing supply functions are ruled out, this set is reduced significantly, but remains large. Specifically, the set of prices that can be sustained by supply function equilibria is the interval between the competitive price and the Cournot price. In sharp contrast, when the number of firms is above a threshold we identify (e.g., three if demand is linear), only the Cournot outcome can be sustained by a coalition-proof supply function equilibrium. 相似文献
106.
Who takes workplace case‐study methods seriously? The influence of gender,academic rank and PhD training 下载免费PDF全文
We examine whether differences in the reporting of workplace case‐study research methods are associated with gender, experience, academic rank and PhD training. Using a random sample of published articles, we find that women take more care reporting their research methods in the context of a general increase in methods reporting. 相似文献
107.
R&;D: A Small Contribution to Productivity Growth 总被引:3,自引:1,他引:3
Diego Comin 《Journal of Economic Growth》2004,9(4):391-421
In this article I evaluate the contribution of R&D investments to productivity growth. The basis for the analysis are the free entry condition and the fact that most R&D innovations are embodied. Free entry yields a relationship between the resources devoted to R&D and the growth rate of technology. Since innovators are small, this relationship is not directly affected by the size of R&D externalities, or the presence of aggregate diminishing returns in R&D after controlling for the growth rate of output and the interest rate. The embodiment of R&D-driven innovations bounds the size of the production externalities. The resulting contribution of R&D to productivity growth in the US is smaller than 3–5 tenths of 1% point. This constitutes an upper bound for the case where innovators internalize the consequences of their R&D investments on the cost of conducting future innovations. From a normative perspective, this analysis implies that, if the innovation technology takes the form assumed in the literature, the actual US R&D intensity may be the socially optimal. 相似文献
108.
This paper examines how investors in an emerging market react to a domestic financial crisis. We conjecture that risk aversion increases following such events and that the effect is more pronounced among specific groups of investors. Our study makes use of a unique dataset of mutual fund investors from one of Colombia's largest stock brokers. Our results reveal that women and self‐employed individuals make the largest withdrawals from risky funds after financial crises. 相似文献
109.
This paper investigates the stochastic properties of the consumption–income ratio for a sample of 23 OECD countries over the period 1960–2005. For that purpose, we employ a battery of recently developed panel unit root and stationarity tests. Our findings from panel unit root tests which do not control for structural breaks appear in line with those from previous studies since they are clearly supportive of the unit root hypothesis. In stark contrast stand the results obtained from the application of a panel stationarity test with multiple breaks, which support the existence of regime-wise stationarity in OECD consumption–income ratios once we control for cross-sectional dependence through bootstrap methods. These findings are reinforced by the median-unbiased estimates of half-lives obtained from impulse-response functions which are found to be finite for the 23 OECD countries. 相似文献
110.
Summary. We study the core and competitive allocations in exchange economies with a continuum of traders and differential information.
We show that if the economy is “irreducible”, then a competitive equilibrium, in the sense of Radner (1968, 1982), exists.
Moreover, the set of competitive equilibrium allocations coincides with the “private core” (Yannelis, 1991). We also show
that the “weak fine core” of an economy coincides with the set of competitive allocations of an associated symmetric information
economy in which the traders information is the joint information of all the traders in the original economy.
Received March 22, 2000; revised version: May 1, 2000 相似文献