This paper is concerned with optimal solutions to the forest management problem when future utilities are undiscounted. By examining asymptotic properties of such solutions, we find that (i) if the utility function is linear, then the Faustmann periodic solution is optimal; (ii) if the utility function is increasing and strictly concave, an optimal solution converges to the maximum sustained yield solution, which we characterize as a golden rule. These results may be viewed as a possible resolution to the debate in forestry economics about what constitutes an optimal policy in forest management. 相似文献
An oil tariff has potential to alter the pattern of production and income distribution across productive factors. This paper use a general equilibrium model of production and trade with inputs of capital, labor, and international energy to examine the effects of an oil tariff. Under a range of conditions, higher energy prices created by oil tariffs would lower the ratio of wages to capital rents, and production of labor intensive goods would fall. This paper concentrates on the potential of oil tariffs to alter patterns of production and income distribution. 相似文献
In the literature on Olympic legacies and impacts, there is a dearth of materials that specifically address the issue of Olympic impact for non-hosting regions. The literature tends to deal with impacts at a national level, or at a hosting-city region level, neglecting in large part the degree to which benefits can be leveraged by non-hosting regions. A further limitation identified in the literature is a failure to engage in detailed formal evaluation of policy implementation where assertions of potential policy impact are based on untested assumptions. This study is intended to address both of these concerns. It presents an empirical, ‘bottom-up’ application of a Realist Evaluation framework to assess the impact of a policy initiative – Workplace Challenge – aimed at leveraging enhanced sports participation in a non-hosting region – Leicestershire – in the period leading up to the 2012 Games. In doing so, it seeks to identify which causal mechanisms worked within this particular context to produce the observed outcomes. The evaluation results demonstrate that the programme represented a positive approach to fostering regular engagement with sport and physical activities for some groups in some types of organisations, and that awareness and motivational factors associated with the London 2012 Games are, in this case, linked (albeit weakly) to an increase in sport and physical activity participation for specific groups taking part in the programme in particular organisational contexts. 相似文献
Short sale orders account for a substantial portion of trading volume in recent years. This paper develops a sequential trade model with constrained short selling to derive the effect on prices when the market maker can observe short selling in the order flow. The model predicts that market quotes will adjust differently to short sales and regular sales. Furthermore, the model shows that the probability of informed trading is impacted both by the level of short sale constraints and the intensity of actual short sale trades. Simulation evidence confirms that estimates of the probability of informed trade are improved when accounting for past short selling activity. The results demonstrate the information benefits of short selling transparency.
We examine the effects of biased (conservative or liberal) reporting on product market competition. Cournot duopolists observe either firm-specific or industry-wide shocks and provide noisy reports subject to an exogenous mandated bias attributed to public policy. Given neutral prior beliefs, either a conservative bias or a liberal bias enhances overall reporting-system informativeness as measured by the reduction of uncertainty. Consistent with previously established effects in the information sharing literature regarding increases in informativeness, we show that expected industry profits and expected consumer surplus may gain or lose from bias, depending on whether the shocks are firm-specific or industry-wide and the degree of product competition. Expected social welfare, however, always increases in bias, irrespective of the source of uncertainty and product substitutability or complementarity. We next consider a setting where firms self-select whether to bias reports and characterize regions of potential conflict with a public policy that maximizes expected social welfare. Further results on the differential effects of conservative or liberal bias follow from relaxing the assumption of neutral prior beliefs. 相似文献
Homeless patients who lack access to the health resources they need to maintain their health on their own pose a challenge for hospitals: Premature discharge of such patients can result in their being readmitted to the hospital in a short time, leading to higher costs for the hospital. Hospitals can address this problem by developing clear, effective homeless discharge policies and by developing ongoing relationships with appropriate medical respite care providers. A hospital also can benefit from spearheading an initiative to develop a medical respite program, enlisting the assistance of other community stakeholders. 相似文献
This paper provides evidence on how corporate multinationality from the perspective of acquiring firms relates to M&A returns. Using multivariate regressions and a large dataset of over 6,000 M&As (both cross-border and domestic) by UK firms during 1987 to 2014, the paper finds multinationality to be associated with significantly higher short-run announcement returns and long-run operating performance. While the multinationality premium (higher M&A returns for multinationals) persists over time, it seems to be restricted to firms with superior resource/managerial capabilities and minimal agency problems. Finally, the multinationality premium appears to be driven by foreign acquisitions into advanced economies. The results are robust to correcting for sample selection bias and controlling for several firm and deal characteristics, as well as accounting for firm-, industry-, and year-fixed effects. Collectively, the findings imply that multinationality could be a source of value creation for acquiring firms, particularly in foreign acquisitions, which tend to be complex, and, thereby, require superior managerial capabilities to succeed. 相似文献