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71.
72.
Success in ‘greening’ a business organization is likely to depend on an appropriate environmental management structure being developed in accordance with the general structure of the organization and then receiving the appropriate support from senior and middle management. The failure to assure such a relationship may provide an explanation of the development of gaps between policy and practice. This article explores differing choices in the structure of the environmental function in a number of UK regional electricity companies and how these choices impact upon the management of environmental issues, producing different outcomes. The paper argues that the environmental structure that is, either consciously or by default, adopted by a company would seem to have some impact on how environmental issues are perceived and dealt with by that company. Therefore, such a decision has the capacity to shape environmental strategy in its implementation and possibly even its conception. Copyright © 2000 John Wiley & Sons, Ltd and ERP Environment  相似文献   
73.
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This study examines the impact of diversification strategy on risk and return in diversified firms. Following an assessment of previous research on strategic risk, relationships between risk, return, and diversification strategy are hypothesized. Regression analysis shows that differences in risk-return performance among diversified firms are more closely associated with structural factors associated with markets and businesses than with the particular diversification strategy chosen. Returns also influence the choice of diversification strategles which, in turn, do not get rewarded with higher profits. A curvilinear risk-return relationship is also observed which is consistent with previous theoretical suggestions. Implications for the strategic management of risk are then drawn.  相似文献   
75.
This study suggests that simulated mergers can be used to help evaluate the effects of diversification on corporate performance. The results, which are consistent with a risk-reduction motive for conglomerate diversification, imply that conglomerate strategies focused on fewer and larger units may be advantageous in terms of certain measures of risk and return. Forecast error is used here to measure strategic risk, and return on equity is used to measure return.  相似文献   
76.
The major hypothesis tested in this paper states that rigid price-cost margins in concentrated industries are an important cause of price rigidity. According to this view, while prices in all industries change with unit variable costs, prices in concentrated industries, where unit margins are rigid, change less than those in unconcentrated industries, where unit margins are more flexible. Three earlier and conflicting studies of price behavior in The Great Depression (1929–33) are reexamined. When these studies are subject to the same or similar tests, it is found that price rigidity is identified with concentration in the period considered.  相似文献   
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78.
This paper discusses economic perspectives on obesity, summarizes the economic literature and outlines potential policy responses. The paper provides the most up-to-date review of the literature. The literature illustrates the potential role of informational market failures and the dichotomy between the private and social costs of obesity. Market failures can act to provide a rationale for government intervention. Suggested factors for explaining the increase in the prevalence of obesity are discussed as relating to imperfect information, lifestyle changes and technology changes. Some of the potential remedial policies that are being debated in the literature include applying Pigouvian taxes, labelling regulation and advertising limitations.  相似文献   
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In the southern African Region (SAR) large populations, mainly concentrated in rural areas, face food insecurity and poverty. Food insecurity is intensified by adverse weather conditions and droughts which impact negatively on farm level food production throughout the region. Agriculture constitutes an important economic sector in the majority of countries in the region. This is measured as share of agricultural value added to the GDP and as agriculture's share in employment. Based on these facts alone, it must be obvious that sustained agricultural performance will play a significant role in the improvement of food security and livelihoods in the region. However, food security is not only attained in rural areas and by the consumption of home produced food stuffs. Urbanisation is expected to increase dramatically over the next few decades and feeding the urban masses, at affordable prices, must be considered to be a high future priority for governments in the region. Food security must not be viewed as an agricultural issue per se. The drive to food self sufficiency through domestic agriculture production in many countries in the region did not enable these countries to feed their own population. Food security should rather be defined as the acquirement of sufficient and nutritious quantities of food (Sen, 1981, Poverty and Famines: An essay on Entitlement and Deprivation). An approach, whereby attention is given to the macro level availability of food, access to income streams as well as improved production capacity to acquire food at a household level and the utilisation of nutritious food, should therefore be guiding food security policies (SADC: FSTAU, 1997, A Strategic Framework for Food Security in the Region). This broader view emphasises household level poverty reduction, economic development and growth as important components of a food security strategy (World Food Summit, Rome, 1996). An important issue which therefore needs to be explored is whether agriculture does have the potential to contribute to economic processes, which will support broad based development and food security. This paper is intended to argue the importance of agricultural development for food security in the region and to develop a diverse policy framework to strengthen this new, more comprehensive role of agriculture in the region.  相似文献   
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