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排序方式: 共有10000条查询结果,搜索用时 375 毫秒
911.
P.H. 《De Economist》1947,95(1):151-152
Jaartal en blz. achter de namen der tijdschriften hebben betrekking op de plaats, waar deze laatstelijk in De Economist zijn
bebandeld. 相似文献
912.
Dr. P. J. Verdoorn 《De Economist》1944,93(1):282-295
913.
Guillaume P. Gruère Colin A. Carter Y. Hossein Farzin 《The Canadian journal of economics》2008,41(4):1472-1497
Abstract. Faced with divergent opinions among consumers on the use of genetically modified (GM) foods, Canada has adopted a voluntary labelling approach for non‐GM foods, whereas the European Union has a mandatory labelling policy for GM foods. Interestingly, both labelling systems have resulted in very little, if any, additional consumer choice. Using an analytical model, we show that the coexistence of GM and non‐GM products at the retail level depends on the labelling policy, consumer perceptions, and the type of product. Although voluntary labelling tends to favour the use of GM products, it is more likely to provide consumer choice. 相似文献
914.
Kali P Rath 《Games and Economic Behavior》1998,22(2):331-342
This paper deals with the existence and other related issues of perfect and proper equilibria of games with a continuum of players. A sufficient condition for the existence of a perfect (proper) equilibrium as an almost everywhere limit of a sequence of ε-perfect (ε-proper) equilibria is given. An example shows that almost everywhere convergence need not obtain if the condition is violated. Extension to the case where the set of actions available to the players can differ is discussed.Journal of Economic LiteratureClassification Number: C79. 相似文献
915.
Ira P. Kaminow 《Journal of International Economics》1979,9(2):277-285
This paper analytically compares macroeconomic performance under fixed and flexible exchange-rate regimes. A model is developed in which the economy is stable around full employment, but subject to periodic random shocks. From the model, conditions are derived which allow comparison (across exchange-rate regimes) of the size of the expected squared deviation from full employment income in any arbitrarily selected period. These conditions are stated in terms of the variances and elasticities of particular behavioral relations. 相似文献
916.
917.
Energy and electricity demand forecasts for Britain made in the late 1970s by a research team from the International Institute for Environment and Development (IIED), under the leadership of Gerald Leach, are assessed with the benefit of hindsight. These researchers broke the energy market down into some 400 end-use, fuel, and appliance categories. They then assessed the potential for energy saving in physical terms, using available technical fixes, for each category. The resulting “bottom-up” projecitons of energy consumption departed from the historic correlation with economic growth, or “top-down” approach. It enabled the IIED team to postulate an alternative, low energy strategy for the United Kingdom to 2025. This study subsequently had a great influence on energy planning elsewhere in the industrialized world, although it was not without its detractors.The IIED energy demand projections are reviewed in the context of both the greatly increased market competition in the UK from 1979 onward, and the need to achieve sustainable development. It is shown that, although total primary energy consumption in the mid-1990s was much in line with the forecasts in the Leach report, the reasons for this and the structure of the newly competitive energy market are quite different from that originally postulated. However, the critics of the IIED team did little better. Long-term energy projections (25–50 years) as one-off, static exercises appear to be of little value for energy planning purposes. They can, as in the case of the Leach report, be a great source of data and ideas, as well as stimulating debate about new strategies. It is argued that rolling projections using a rather broad, sectoral approach that is continuously updated at not greater than five-year intervals, in a similar manner to econometric forecasts, are more useful for energy planning purposes. 相似文献
918.
Actual Share Reacquisitions in Open-Market Repurchase Programs 总被引:7,自引:0,他引:7
Unlike Dutch auction repurchases and tender offers, open-market repurchase programs do not precommit firms to acquire a specified number of shares. In a sample of 450 programs from 1981 to 1990, firms on average acquire 74 to 82 percent of the shares announced as repurchase targets within three years of the repurchase announcement. We find that share repurchases are negatively related to prior stock price performance, suggesting that firms increase their purchasing depending on its degree of perceived undervaluation. In addition, repurchases are positively related to levels of cash flow, which is consistent with liquidity arguments. 相似文献
919.
920.
P. K. Thornton 《Journal of Agricultural Economics》1989,40(2):198-208
A beef simulation model was used to examine a range of production possibilities for increasing the output of extensive ranching systems in the tropical savannas of eastern Colombia through the use of sown grass-legume pastures of higher inherent digestibility than that of the native species. Generalised stochastic dominance was used to compare some promising alternatives with the unimproved savanna-based production system and with each other. As the planning horizon of the decision maker was reduced, so variability, measured as the coefficient of variation of output, increased significantly. The impact of risk on the long-term acceptability of a complete investment was limited. 相似文献