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71.
The influence of agriculture on Australia's nineteenth and twentieth century economic development is well known. While wool's contribution is rightly celebrated, the contribution of agricultural crops has received less attention. This paper focuses on one major staple, wheat, from 1861 to 1939. Both patent data and a new measure of technological progress, the cumulative number of wheat varieties tested for local adoption, are used to quantify the contribution of agricultural innovation to growth. We find innovation in this sector made an important contribution to the growth of total factor productivity over the period.  相似文献   
72.
This paper analyzes the impact of the output gap on market excess returns. The output gap is usually defined as the deviation of output from potential output that is indicated by the trend output. However, this study departs from the common approach of calculating the output gap based on a simple trend line. It uses a flexible data-driven weighting scheme, and it uses only the available information that corresponds to each forecasting origin to derive the output gap. Overall, the proposed output gap is a strong predictor of U.S. market excess returns.  相似文献   
73.
74.
We construct a zero net-worth uninformed “naive investor” who uses a random portfolio allocation strategy. We then compare the returns of the momentum strategist to the return distribution of naive investors. For this purpose we reward momentum profits relative to the return percentiles of the naive investors with scores that are symmetric around the median. The score function thus constructed is invariant and robust to risk factor models. We find that the average scores of the momentum strategies are close to zero (the score of the median) and statistically insignificant over the sample period between 1926 and 2005, various sub-sample periods including the periods examined in [Jegadeesh and Titman, 1993] and [Jegadeesh and Titman, 2001] . The findings are robust with respect to sampling or period-specific effects, tightened score intervals, and the imposition of maximum-weight restrictions on the naive strategies to mitigate market friction considerations.  相似文献   
75.
The tailoring of a firm’s marketing mix to the individual customer is the essence of one-to-one marketing. In this paper, we distinguish between two forms of one-to-one marketing: personalization and customization. Personalization occurs when the firm decides what marketing mix is suitable for the individual. It is usually based on previously collected customer data. Customization occurs when the customer proactively specifies one or more elements of his or her marketing mix. We summarize key challenges and knowledge gaps in understanding both firm and customer choices in one-to-one markets. We conclude with a summary of research opportunities.  相似文献   
76.
Quantitative Marketing and Economics - Targeting selling efforts towards profitable customers is widely known to increase sales and allow firms to charge higher prices. In this paper, we show that...  相似文献   
77.
We present a new version of the overtaking criterion, which we call generalized time-invariant overtaking. The generalized time-invariant overtaking criterion (on the space of infinite utility streams) is defined by extending proliferating sequences of complete and transitive binary relations defined on finite dimensional spaces. The paper presents a general approach that can be specialized to at least two, extensively researched examples, the utilitarian and the leximin orderings on a finite dimensional Euclidean space.  相似文献   
78.
Abstract This study evaluates the impacts of welfare transfers and the minimum wage on teen family formation by pooling provincial data from Canada between 1990 and 2005. OLS estimates suggest that welfare transfers have had limited impact on teen births. On the other hand, a 10% increase in the minimum wage is significantly correlated with a 3%–5% rise in teen birth rates. This finding is explained by further regressions, which reveal that an increase in the minimum wage is significantly associated with (1) higher earnings among male teens, (2) an increase in teen marriage rates, and (3) an increase in fertility among married teens but not among unmarried females. Finally, estimates based on the 2003 and 2005 waves of the Canadian Community Health Surveys demonstrate that married teens are more likely to engage in sex as well as unprotected intercourse in comparison with single teens.  相似文献   
79.
The precautionary principle, a recommendation to consider action to avoid a possible harm even if it is not certain to occur, is variously defined and interpreted. We present a range of definitions with an emphasis on their requirements for strength of evidence of harm and for actions to be taken. We describe the variety of approaches that have been adopted in developing policy to address the issue of possible health effects of electric and magnetic fields (EMF) in the face of scientific uncertainty. Further, we discuss specific aspects of scientific uncertainty regarding EMF health risks particularly relevant to the development of precautionary principle policy. We define and discuss prudent avoidance and other unique features of applications of the precautionary principle to EMF. We conclude with examples from EMF policy decisions of risk tradeoffs that need to be considered in developing any precautionary principle policy, and provide recommendations for better ways to define and implement the precautionary principle.  相似文献   
80.
This paper describes how a nuclear power corporation integrates sustainability into corporate strategies and practices. The case study focuses on one of the world's largest nuclear power generators and describes the corporate capture of sustainable development in its strategic efforts to promote a growth strategy. The paper shows how corporate strategies to address sustainability concerns involve managing different stakeholders, enabling the corporation to sustain its economic growth strategy. Three types of stakeholder management strategy are identified: reinforcement strategies for supportive stakeholders, containment strategies for obstructive stakeholders and stabilization strategies for passive stakeholders. The paper argues that, despite claims of sustainable development in the nuclear industry, there is no significant shift in the ‘business as usual’ approach and that sustainable development is merely reframed as sustainable growth. Copyright © 2010 John Wiley & Sons, Ltd and ERP Environment.  相似文献   
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