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81.
Exploring the Relationship between Sustainability Reporting and Sustainability Management Practices 下载免费PDF全文
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
82.
Ralf Zeppernick 《Intereconomics》1999,34(6):279-285
The implications of the introduction of the euro undoubtedly reach far beyond Europe. How will the rest of the world be affected? What role will the euro play as an international trading, investment and reserve currency? Will it be able to function as a stabilising element in the international monetary system? 相似文献
83.
Many of today's fish stocks are officially managed following the precautionary approach. Yet, different political objectives and uncertainties among fishermen about their economic future make its implementation difficult. Over 75% of all commercially valuable stocks are exploited, overused, or collapsed and in a state of recovery [FAO, 2004. The state of the world fisheries and aquaculture. FAO, Rome. Managing fish stocks with an ecosystem-based approach is likely to stop the divestment of natural capital by combining sustainable use strategies with the preservation of marine ecosystems. Using the example of the Baltic Sea cod fishery, we show that a recovery program is economically and ecologically viable and reduces negative externalities. While policy makers must assist fishermen during the early years of the program, fishermen will experience greater landings and profits in subsequent years. 相似文献
84.
Dynamic Hedging Effectiveness in South Korean Index Futures and the Impact of the Asian Financial Crisis 总被引:1,自引:0,他引:1
This paper focuses on the impact of the 1997 Asian financial market crisis upon hedging effectiveness within the KOSPI 200 stock index and index futures markets. The paper utilizes the inter-temporal relationship between the two markets to examine the characteristics of several minimum variance hedge ratios. It also examines the performances of alternative hedging strategies for dynamic portfolio management in the presence of cointegrated time-varying risks. The results show a decline in the persistence of conditional volatility within market prices after the crisis. This decline leads to the relative performance of utilizing constant hedge ratios to increase, though not significantly so to guarantee a superior performance over more sophisticated time-varying hedge ratio strategies. 相似文献
85.
In continuous time, we study a financial market which is free of arbitrage opportunities but incomplete under the physical
probability measure P. Thus one has several choices of equivalent martingale measures. In the present paper, the (unique) martingale measure P
* is studied which is defined by the concept of the numeraire portfolio. The choice of P
* can be justified by a change of numeraire in place of a change of measure.
Mathematics Subject Classification (2000): 90A09, 91B28, 91B62, 93E20, 62P05
Journal of Economic Literature Classification: G10, G12, G13 相似文献
86.
In this study a regime-switching approach is applied to estimate the chartist and fundamentalist (c&f) exchange rate model originally proposed by Frankel and Froot (1986). The c&f model is tested against alternative regime-switching specifications applying likelihood ratio tests. Nested atheoretical models like the popular segmented trends model suggested by Engel and Hamilton (1990) are rejected in favour of the multi-agent model. Our findings turned out to be relatively robust when assessing the models sub-sample estimates and out-of-sample performance.JEL Classification:
F31, F37, G12, G15
Correspondence to: S. Reitz 相似文献
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90.
This paper contributes to our understanding of the informational content of implied volatility. Here we examine whether the S&P 500 implied volatility index (VIX) contains any information relevant to future volatility beyond that available from model based volatility forecasts. It is argued that this approach differs from the traditional forecast encompassing approach used in earlier studies. The findings indicate that the VIX index does not contain any such additional information relevant for forecasting volatility. 相似文献