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21.
Accurate estimates of mortality at advanced ages are essential to improving forecasts of mortality and the population size of the oldest old age group. However, estimation of hazard rates at extremely old ages poses serious challenges to researchers: (1) The observed mortality deceleration may be at least partially an artifact of mixing different birth cohorts with different mortality (heterogeneity effect); (2) standard assumptions of hazard rate estimates may be invalid when risk of death is extremely high at old ages and (3) ages of very old people may be exaggerated. One way of obtaining estimates of mortality at extreme ages is to pool together international records of persons surviving to extreme ages with subsequent efforts of strict age validation. This approach helps researchers to resolve the third of the above-mentioned problems but does not resolve the first two problems because of inevitable data heterogeneity when data for people belonging to different birth cohorts and countries are pooled together. In this paper we propose an alternative approach, which gives an opportunity to resolve the first two problems by compiling data for more homogeneous single-year birth cohorts with hazard rates measured at narrow (monthly) age intervals. Possible ways of resolving the third problem of hazard rate estimation are elaborated. This approach is based on data from the Social Security Administration Death Master File (DMF). Some birth cohorts covered by DMF could be studied by the method of extinct generations. Availability of month of birth and month of death information provides a unique opportunity to obtain hazard rate estimates for every month of age. Study of several single-year extinct birth cohorts shows that mortality trajectory at advanced ages follows the Gompertz law up to the ages 102-105 years without a noticeable deceleration. Earlier reports of mortality deceleration (deviation of mortality from the Gompertz law) at ages below 100 appear to be artifacts of mixing together several birth cohorts with different mortality levels and using cross-sectional instead of cohort data. Age exaggeration and crude assumptions applied to mortality estimates at advanced ages may also contribute to mortality underestimation at very advanced ages.  相似文献   
22.
This article presents a comparative analysis of the perceived usefulness of performance information by managers in local authorities in Italy and Spain. Italy and Spain have similar cultural and administrative characteristics and in both countries there are external requirements (from central government) to adopt performance indicators. The adoption of performance indicators was found to be almost symbolic in both states.  相似文献   
23.
A new procedure for the measurement of efficiency and technical change is presented, using DEA with three-dimension data (box data), pooling over sectors, regions and time. Until now, when pooling the data in panel applications it has been assumed that technology remained unchanged, so productivity change was entirely attributed to technical efficiency change. However, patterns of technology change and the decomposition into efficiency and technical change elements can be accomplished by means of restrictions on the general structure of the technology indexes. Under the assumption of non-regressive technical change, upper and lower bounds for efficiency and technical change are obtained. The new methodology is illustrated in an analysis of productivity growth in 13 manufacturing sectors in the Spanish regions from 1980 to 1992.  相似文献   
24.
Research on the dynamics of tropical forest land use and cover change (LUCC) has focused on the three scenarios: (1) deforestation/degradation; (2) settled, degraded areas in recovery, and (3) sparsely settled, expansive, intact forest. Through examination of a central Quintana Roo, Mexico case study we propose a fourth scenario of a ‘sustainable landscape’: an inhabited, productively used, forested landscape that nonetheless shows little change or net gains in forest cover over the last 25 years. We use Landsat images to demonstrate a low incidence of net deforestation, 0.01% for the 1984–2000 period, the lowest recorded deforestation rate for southeastern Mexico. Institutional innovations such as an agrarian reform process that established large common property forests for non-timber forest product extraction, and later innovations such as sustainable forest management institutions have driven the outcome of low net deforestation, added to multiple organizational processes that promote sustainable land use.  相似文献   
25.
This paper examines the influence of internal barriers on the relationship between the organizational capability of stakeholder integration and proactive environmental strategies. We adopt a moderate hierarchical regression model to test the hypotheses using data from a sample of 73 managers in the business education industry. The paper contributes to stakeholder theory by showing that stakeholder integration positively influences the development of proactive environmental strategies when managers perceive internal barriers to the development of such strategies. This article also explores an ethical dilemma—managers may use the stakeholder integration capability to support their own interests rather than to benefit stakeholders.  相似文献   
26.
Journal of Business Ethics - In this study, we reconcile conflicting findings from the extant literature on the impact of tax system parameters on tax noncompliance. We argue that social norms play...  相似文献   
27.
We construct a novel measure of uncertainty using expert monetary policy recommendation data for Australia. Our results suggest that the Reserve Bank of Australia (RBA) tends to lower the cash rate when expert uncertainty is high. This result is robust to using other uncertainty measures.  相似文献   
28.
President Trump has dramatically changed U.S. trade policy through the adoption of steep tariffs. We argue in this article that even when there are significant geopolitical reasons, Trump’s actions on trade are a response to internal demands resonant with a long history of protectionism. We provide clear evidence of the impacts of social demographics on U.S. trade policy and show that individuals from capital-intense regions with high educational attainment tend to support protectionism.  相似文献   
29.
The article deals with the problems of ecological tourism in Russia. The authors give various approaches to the understanding of ecological tourism in modern science, analyse the reasons of interest in this kind of tourism, consider its types and identify specific features. The article provides an overview of the main regions and countries where ecological tourism is developed at a high level and considers some national policy models in the field of ecological tourism. Specific attention is paid to the analysis of the development of ecological tourism in Russia and its current status; the examples of different programmes aiming at support of ecological tourism are given. Specific impetus is given to Russia's resources for the development of ecological tourism, for example, natural landscapes, national parks and nature heritage sites. The authors explore the main challenges to ecological tourism in Russia, identify factors that hinder its development and suggest measures to improve the ecological tourism in the Russian Federation. The authors focus on the projects that promote the improvement of Russia's image as an eco-touristic destination. The authors pay specific attention to the analysis of international cooperation in this field. The article discusses various projects carried out within the framework of bilateral cooperation. The article discusses the role of ecological tourism as a tool for image policy. The article analyses in detail which elements of the Russian image are under the influence of ecological tourism and what are the future prospects of ecological tourism.  相似文献   
30.
This paper provides a characterisation of the degree of cross‐sectional dependence in a two dimensional array, {xit,i = 1,2,...N;t = 1,2,...,T} in terms of the rate at which the variance of the cross‐sectional average of the observed data varies with N. Under certain conditions this is equivalent to the rate at which the largest eigenvalue of the covariance matrix of x t=(x1t,x2t,...,xNt)′ rises with N. We represent the degree of cross‐sectional dependence by α, which we refer to as the ‘exponent of cross‐sectional dependence’, and define it by the standard deviation, , where is a simple cross‐sectional average of xit. We propose bias corrected estimators, derive their asymptotic properties for α > 1/2 and consider a number of extensions. We include a detailed Monte Carlo simulation study supporting the theoretical results. We also provide a number of empirical applications investigating the degree of inter‐linkages of real and financial variables in the global economy. Copyright © 2015 John Wiley & Sons, Ltd.  相似文献   
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