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51.
One of the ways in which Indonesians have adapted to economic change over recent decades is through permanent and temporary movement within and outside the country. This paper focuses on the effects which the crisis that started in 1997 has had upon population mobility among different groups and in different areas within the country. It begins by summarising the employment effects of the crisis, as indicated by the 1997 and 1998 National Labour Force Surveys. It then uses results from a number of surveys to identify the changes that have occurred in population mobility in Indonesia during the crisis. In particular it looks at the extent and nature of urban to rural movement, and at patterns of movement between Java and the Outer Islands. Although comprehensive data are lacking, it is argued that population mobility has become an important coping mechanism for confronting the crisis.  相似文献   
52.
The major biotic constraints to the production of maize, the major staple food in Western Kenya, are field pests such as Striga and stem borers, and low soil fertility. To counter these constraints, new cropping systems have been developed, including “push‐pull,” rotations with promiscuous soybean varieties and green manure crops, and imidazolinone resistant‐ (IR‐) maize. To analyze the technical and economic performance of these technologies, both with and without fertilizer, on‐farm researcher‐managed long‐term trials were implemented over six seasons in two sites each in Vihiga and Siaya districts of Western Kenya. The economic results, based on marginal analysis using a multioutput, multiperiod model, show that the new cropping systems with fodder intercropping (push‐pull) or soybean rotations were highly profitable. Push‐pull is more profitable but requires a relatively high initial investment cost. Green manure rotation, IR‐maize, and fertilizer all increased yields, but these investments were generally not justified by their increased revenue. We argue that research on rotation and cropping systems to tackle pest and soil fertility problems in Africa deserve more attention. This will require increased collaboration between agronomists and economists to set up long‐term experiments with new cropping systems to develop proper economic models.  相似文献   
53.
Exports and Productivity Selection Effects for Dutch Firms   总被引:2,自引:2,他引:0  
The paper tests whether recent theories of international trade with heterogeneous firms can explain the export patterns in Dutch firm- and plant- level data in manufacturing and services. Recent trade models with heterogeneous firms predict that the export decision of firms is affected by sunk entry costs in foreign markets, with only the most productive firms self-selecting into exports. We test a latent variable model of the export decision by probit regressions and standard OLS panel regressions. Our results support the self-selection prediction. The process further appears to be conditioned by scale effects, market structure and multinational affiliation. Regarding alternative explanations, we do not find evidence for the learning-by-exporting hypothesis, even when controlling for the firm’s distance to the international productivity frontier.  相似文献   
54.
The conceptualization of assets and liabilities is fundamental to an understanding of financial accounting. It is often maintained that assets and liabilities represent economic resources and economic obligations, respectively, but that not all economic resources are assets and not all economic obligations are liabilities — a somewhat confusing state of affairs. This paper presents a schema for distinguishing assets from economic resources and liabilities from economic obligations based on the authoritative literature in the United States, Australia, Canada and Great Britain. The schema should be useful for clarifying certain financial accounting controversies concerning income taxes, leases, pension benefit payments and executory contracts.  相似文献   
55.
Abstract

Whilst health consequences of being locked-in at the workplace have been documented in several research studies, it is largely unknown how work characteristics and their changes over time relate to risks for becoming locked-in at a certain workplace. Accordingly, this paper studied how perceived control, learning opportunities and quantitative demands at work associate with workplace-locked-in (WPLI). The study included permanent employees who participated in the Swedish Longitudinal Occupational Survey of Health (SLOSH) study in wave 3 through 5 (n = 2918 individuals; n = 7460 observations). Results from multi-level analysis show that there was significant individual variation in WPLI changes over time, even though on average, WPLI decreased slightly. Differences in work characteristics between individuals (L2) and across time (L1) associated significantly with WPLI: higher levels of job control and learning opportunities related to lower odds ratios for WPLI, whereas higher quantitative job demands associated with higher odds ratios of WPLI. Moreover, differences in quantitative job demands, number of job changes and educational achievements explained the individual variations of WPLI developments over time. The result shows that WPLI can – to some extent – be prevented or reduced through good work design, and implications for HR managers and organizations are discussed.  相似文献   
56.
For about 150 years, international trade theory has mostly highlighted trade in consumption goods. Such a modeling approach was likely supported by the then prevailing commodity structure of world trade. This paper shows that – at least since 1970 – only about 20 per cent of commodity trade has taken place in consumables, the remainder being intermediates and capital goods. Theoretically, this evidence suggests a move in the modelling strategy for traded goods: from utility functions to production functions. Sanyal and Jones' "new trade theory" (1982) does precisely that. In addition, some crucial research challenges emerge. These relate to dynamic changes in some general characteristics of production technologies throughout the world.  相似文献   
57.
Biofortification, or the improvement of nutritional quality in food crops, is a promising strategy to combat undernutrition, particularly among the rural poor in developing countries. However, traditional methods of impact assessment are inadequate for biofortified crops, as they do not consider their nutritional benefits. Evidence for the nutritional impact of maize varieties with improved protein quality, collectively known as quality protein maize (QPM), was evaluated using meta-analysis of randomized, controlled studies in target communities. A new and generalizable effect size was proposed to quantify the impact of QPM on a key outcome, child growth. The results indicated that consumption of QPM instead of conventional maize leads to a 12% (95% CI: 7–18%) increase in the rate of growth in weight and a 9% (95% CI: 6–15%) increase in the rate of growth in height in infants and young children with mild to moderate undernutrition from populations in which maize is the major staple food. The proposed effect size and use of bootstrapping to determine statistical significance addressed some methodological limitations in the existing studies.  相似文献   
58.
59.
In Mexico, the low participation of insurance activity in national production, in contrast to similar Latin American economies, is a concern. Industry’s regulator promoted more intense competition at the dawn of the century. Was deregulation followed by improvements in the financial and economic performance of Mexican insurance firms? The purpose of this paper is to answer this question through a comprehensive analysis of cost variations in an intertemporal manner, by breaking them down into the economic sources that produce them, including productivity. Cost frontier estimation was grounded in a joint production technology of desirable and undesirable outputs, modeled in an input-oriented fashion. Our results demonstrate that even though some companies achieved cost reductions from technological progress or improvements in efficiency, the Mexican insurance market does not show signs of significant productivity gains.  相似文献   
60.
The use of individual transferable quotas in fisheries has been considered an opportunity to achieve a given total allowable catch with a maximum social benefit. One of the assumptions used in obtaining that result is that the system is in perfect compliance. The presence of violations and the need for enforcement of tradable property rights systems in fisheries has not received much attention in the literature. The incidents of non-compliance, however, may affect the performance of transferable property rights-based fisheries in unexplored ways. In this paper, we adapt previous literature on enforcing emissions trading programs to analyze a positive model of fisherman behavior that operates under a perfectly competitive individual transferable quota system, while recognizing the opportunities for violations of quota holdings, given incomplete enforcement. Considering a poorly enforced, individual transferable quota system we are able to obtain a number of implications for the current and future equilibrium of the quota market, the time paths of the fishery, and the proper design of a policy rule on total allowable catch (TAC).  相似文献   
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