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1.
Using data for a long panel of 90 developed and developing countries, this article explores the effects of research and development (R&D) and fixed capital stock on agricultural land productivity over the period 1961–2012. Instruments are used for R&D to deal with feedback effects and measurement errors. The results show very high social returns to investment in R&D and to fixed capital stock, suggesting that increasing investment in these factors are promising ways of arresting the increasing food prices due to increasing demand for animal protein, population growth, desertification, salinization, soil erosion, climate change, and decreasing growth in land productivity.  相似文献   
2.
Abstract

Die Lebensversicherungsgesellschaften haben fast während ihrer ganzen Tätigkeit auch solche Personen in die Versicherung angenommen, denen man die Lebensversicherung nicht zu tarifmässiger Prämie hat bewilligen können. Dessen ungeachtet ist die Erweiterung der Lebensversicherungstätigkeit auf solche Personengruppen, deren Sterblichkeit in wesentlichem Masse die Bevölkerungssterblichkeit überschreitend geschätzt wird oder die eigentliche Versicherung erhöhter (anomaler) Leben sehr neu. In Europa kann sie nur einige Jahre über 20 zählen. In Amerika hat sie schon eine etwas längere Erfahrung hinter sich. Aus der Neuheit der Tätigkeit folgt, dass es nur wenige Versichertensterblichkeitsuntersuchungen über diese Risiken gibt, weshalb man bei der Herleitung der Tätigkeitsgründe in vieler Hinsicht gezwungen ist sich auf Erfahrungen aus ziemlichfernen Kreisen zu stützen. Dazu kommt, dass die Verhältnissein den verschiedenen Ländern vielfach unterschiedlich sind, weshalb auch die Bedeutung einer Anomalie hinsichtlichder Sterblichkeit in verschiedenen Ländern eine andere sein kann.  相似文献   
3.
CDM is an offset mechanism designed to reduce the overall cost of implementing a given global target for greenhouse gas (GHG) emissions in Annex B countries of the Kyoto Protocol. A problem with CDM is that it provides incentives to increase, if possible, the baseline emissions for CDM projects, to optimize the value of CDM credits. Under a “relative baselines” crediting rule, the CDM may also unduly increase energy consumption even during the CDM implementation phase. Less than full offset of emissions is then likely, and the CDM will lead to increased global GHG emissions. We show that this is a potentially serious problem, due to asymmetric information between project hosts and the regulator, the CDM Executive Board, and to the basic rules for crediting CDM quotas. In certain cases, the use of “relative baselines” to credit CDM quotas could fully eliminate any emissions reductions achieved by CDM projects. Remedies to overcome the problems are discussed. They may involve setting the baseline independently of initial energy intensity and final output for the project; or involve information revelation mechanisms that minimize policy losses and net rent capture by project sponsors.  相似文献   
4.
5.
Instruments used to regulate the consumption of oil in the transport sector include fuel taxes, biofuel requirements, and fuel‐efficiency standards. However, the effects that these have on oil consumption and price vary. If market power is present in the oil market, the directions of change in consumption and price might contrast with those in a competitive market. As a result, the market structure affects not only the effectiveness of the policy instruments used to reduce oil consumption, but also the terms of trade and carbon leakage. In particular, reduced oil consumption, as a result of increased fuel‐efficiency standards, will unambiguously increase the price of oil under a monopoly.  相似文献   
6.
Australia's and Canada's real wage experiences between 1870 and 1913 were distinctive. Faster productivity growth underpinned Canada's overtaking of Australia's wage levels. The globalization forces of migration and trade also shaped their comparative wages, principally by reducing wage growth in Canada. Immigration increased slightly Australia's real wages, but reduced wage levels in Canada, and tempered there the beneficial effects of rising productivity and improving terms of trade. In contrast, wage earners' share of national income rose after 1890 in Australia, with the productivity slowdown hitting chiefly rents and profits. Distributional shifts favouring wage earners in Australia, and the depressing effects of mass immigration on wages in Canada, limited Canada's wage lead before 1914, despite her faster productivity growth.  相似文献   
7.
Empirical tests of the Fisher hypothesis give conflicting results, regardless of whether income growth is accommodated in the estimates. This paper shows theoretically and empirically that standard methods of testing the Fisher hypothesis give biased results and that the bias depends on the specification of the Fisher equation, the process governing inflation, measurement of inflation expectations, and the time aggregation of the data. Alternative tests show that share markets take several years to adjust to innovations in inflation and therefore that the Fisher hypothesis cannot be maintained. Helpful comments and suggestions from Hans Christian Kongsted, Darrel Turkington and seminar participants at the University of Western Australia, and University of Konstanz and, particularly, two referees, are gratefully acknowledged.  相似文献   
8.
This study focuses on the importance of changes in entrepreneurial orientation (EO) over time for subsequent firm performance, and the significance which inimitable resources (networks, governance system and unique competence) might have in this connection. Hypotheses are developed to test the effects that changes in EO level over a time period and resources have on subsequent firm performance. The study is based on data from 168 Norwegian SMEs, interviewed both in 2000 and 2003. The primary contribution of this study is that a change in EO over time (increased or decreased), may be of importance for a firm's performance represented by performance compared to competitors, and employment growth. A focus on entrepreneurial activities seems to be beneficial in the long run (increasing EO), while the opposite is the case if the EO level decreases. It is especially encouraging to see that firms focusing on EO (increased or the same) are positively associated with employment growth, one of the primary policy goals world-wide. Another contribution from this study is that resources that may be inimitable for firms have some influence on performance compared to competitors. Implications for policy-makers, practitioners and further research are discussed.  相似文献   
9.
This paper examines the impact of macroeconomic policies in a general equilibrium system where the product market is modelled as an oligopolistic supergame. It is shown that policies which affect the interest rate, influence the degree of competition and hence the level of output in the economy. The analysis reveals that some macroeconomic policies may have perverse and counter intuitive effects in the system.  相似文献   
10.
Does Improved Environmental Policy Enhance Economic Growth?   总被引:1,自引:1,他引:0  
The environmental impacts on an economy is studied over time using endogenous growth theory. Externalities from the environment on production are central in the analysis, and we examine whether an optimal path realizes more rapid economic growth. The paper focuses mainly on developing countries, where production is largely influenced by the environmental quality. The result of the analysis indicates that the economic growth rate may not depend on the internalization of the environmental externality, but rather on the internalization of the human capital externality. The level of economic activity, however, generally seems to depend on the internalization of both externalities.  相似文献   
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