首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   177篇
  免费   6篇
财政金融   35篇
工业经济   8篇
计划管理   34篇
经济学   44篇
综合类   1篇
旅游经济   3篇
贸易经济   31篇
农业经济   8篇
经济概况   19篇
  2023年   5篇
  2022年   1篇
  2021年   2篇
  2020年   3篇
  2019年   8篇
  2018年   4篇
  2017年   9篇
  2016年   7篇
  2015年   2篇
  2014年   8篇
  2013年   24篇
  2012年   7篇
  2011年   4篇
  2010年   6篇
  2009年   7篇
  2008年   8篇
  2007年   3篇
  2006年   9篇
  2005年   7篇
  2004年   8篇
  2003年   2篇
  2002年   5篇
  2001年   5篇
  2000年   2篇
  1999年   2篇
  1998年   2篇
  1997年   5篇
  1995年   4篇
  1994年   1篇
  1993年   1篇
  1992年   1篇
  1991年   4篇
  1990年   1篇
  1988年   1篇
  1987年   3篇
  1986年   1篇
  1985年   5篇
  1983年   1篇
  1982年   1篇
  1981年   1篇
  1980年   1篇
  1979年   1篇
  1977年   1篇
排序方式: 共有183条查询结果,搜索用时 0 毫秒
61.
This paper examines the evolution of the Mexican economy since the crisis of 2008–2009. It focuses on the main economic indicators of the period and then turns to the changes in economic policy adopted by Peña Nieto’s government since late 2012 and the scope and shortcomings so far of these reforms. It then looks in detail at what happened in 2015, a year characterized by a deterioration of the external environment and by a number of puzzles. Finally, it addresses the short and medium term prospects of the economy under the present set of economic policies and the changes required to put the economy on a higher growth path.  相似文献   
62.
There is considerable controversy about the correct discount (or "hurdle") rate to use when performing valuations of investments in real assets in emerging markets. The topic is particularly relevant because of the growing need to evaluate privatizations, direct private acquisitions, and greenfield investments in new productive facilities throughout the world.
This article argues that the traditional practitioners' approach of building a country risk premium into the discount rate is generally inappropriate, mainly because country risk is not the same for all projects nor is it totally systematic. Moreover, there is no reason for the discount rate to be closely related to the spread on the government bonds of the country concerned. The author also points out that, in determining the appropriate discount rate, what is important is not the segmentation of the market, but the extent to which the investor is locally or globally diversified. The article accordingly reviews a selected group of models for calculating discount rates for both segmented and integrated markets. Adjustments to the valuation procedure are also suggested for cases in which investors are not well diversified or the investment is illiquid.  相似文献   
63.
Has Distance Died? Evidence from a Panel Gravity Model   总被引:3,自引:0,他引:3  
The estimated coefficient of distance on the volume of tradeis generally found to increase rather than decrease throughtime using the traditional gravity model of trade. This distancepuzzle proved robust to several ad hoc versions of the modelusing data for 1962–96 for a large sample of 130 countries.The introduction of an "augmented" barrier to trade functionremoves the paradox, yielding a decline in the estimate of theelasticity of trade to distance of about 11 percent over the35-year period for the whole sample. However, the "death ofdistance" is shown to be largely confined to bilateral tradebetween rich countries, with poor countries becoming marginalized.  相似文献   
64.
Studies of US‐Mexico vegetable trade have generally emphasized the importance of US tariffs in determining the competitive advantage of US producers. Even so, research has identified at least four factors related primarily to the different levels of economic development in the US and Mexico that also have important effects on US‐Mexico agricultural trade in general and fresh vegetable trade in particular. These include the differential growth rates of US and Mexican real wages, production technology (yields), and per capita income as well as cyclical movements in the real Mexican Peso/US Dollar exchange rate. This study examines the relative contribution of NAFTA and the development‐related factors to likely future changes in US fresh vegetable imports from Mexico. The analysis employs an econometric simulation model of US and Mexican markets for five fresh vegetables (tomatoes, cucumbers, squash, bell peppers, and onions) accounting for 80% of US fresh vegetable imports. The results suggest that the 1994–1995 Peso devaluation rather than NAFTA was primarily responsible for the sharp increase in US imports of Mexican vegetables observed in the first years following the implementation of NAFTA. Over time, however, the results suggest that differences in the growth rates of US and Mexican production yields and, to a lesser extent, of US and Mexican real incomes and/or real wage rates could plausibly contribute more to the future growth of US tomato, squash, and onion imports from Mexico than the trade liberalizing effects of NAFTA.  相似文献   
65.
This article analyzes the resource implications of voluntaryexport restraints (VERs) for exporting countries. A simple analyticalmethod is used to demonstrate that, by reducing the marginalrevenue of its factors of production, a VER causes an industryin the exporting country to contract, and that the efficiencylosses from a VER depend on the ease with which sales can bediverted from the restricted toward the unrestricted markets.The method is applied to test the effects of the U.S. OrderlyMarketing Agreement (OMA) for producers of leather footwearin the Republic of Korea during the period 1977–81. Weestimate that the marginal revenue product of factors employedin leather footwear declined by as much as 9 percent becauseof the OMA, an estimate that is corroborated by inspection oftime series on output, employment, and wages of the Korean footwearsector. This implies that there was pressure on the Korean footwearindustry to contract as a result of the OMA.  相似文献   
66.
Portugal was the first independent nation to follow Britain in joining the gold standard. Although beset by persistent current account deficits and heavily dependent on foreign capital inflows, it enjoyed a relatively stable tenure of 37 years on gold. This paper shows how it was possible to secure currency stability, despite a lower credibility for the peg and a higher incidence of gold point violations than in core countries. The explanation lies in the central role played by institutional actors, such as the Bank of Portugal and/or the government, whose interventions in the exchange market kept the parity within the band.  相似文献   
67.
This paper provides a comprehensive study of the interplay between the Federal Reserve’s balance sheet and overnight interest rates. We model both the supply of and the demand for excess reserves. Treating outright securities holdings of the Federal Reserve as a policy tool, we estimate the effects of unconventional monetary policy on overnight funding rates. Further, we offer the first empirical assessment of the FOMC’s principles of the exit strategy. Assuming a path for removing monetary policy accommodation that is consistent with the FOMC’s exit principles, we project that the federal funds rate increases to 70 basis points by 2016, settling in a corridor bracketed by the discount rate and the interest rate on excess reserves, as excess reserves of depository institutions decline to near zero.  相似文献   
68.
The ‘distance effect' measuring the elasticity of trade flows to distance has been found to be rising since the early 1970s in a host of studies based on the gravity model, leading observers to call it the ‘distance puzzle'. However, this puzzle is regularly challenged by new developments in the specification of the gravity equation or in its estimations. We propose an original survey on the existing methods used to quantify the distance puzzle – basically the computation of an average distance of trade, a meta‐analysis on existing gravity papers and the implementation of recent econometric developments, all on a well‐specified gravity equation both in cross‐section and panel data. We apply all these methods to a unique large database (124 countries from 1970 to 2006). It appears that if all these new developments can change the amplitude of the increase in the trade elasticity to distance, none solve the distance puzzle. We confirm the existence of this puzzle and identify that it only applies to low‐income countries which exhibit a significant rising distance effect on their trade of around 18% between 1970 and 2006 while the distance ‘puzzle' for trade within richer countries disappears.  相似文献   
69.
Background: Polymyxin B and colistin are nephrotoxic drugs used in the treatment of carbapenem-resistant Enterobacteriaceae. The aim of this study is to evaluate the burden of costs due to polymyxin associated AKI and propose a simulated break-even price for new therapies.

Methods: The pharmacoeconomic model is based on two large cross-sectional studies of polymyxin nephrotoxicity. Total direct costs in patients with and without renal failure were compared. The direct cost of each hemodialysis section (USD82.94) and daily hospital charges (USD934.85) were based on the values used in a major public hospital in the city where the clinical study was performed. The break-even price of new drugs was simulated considering eventual new drugs as effective as polymyxins, but less nephrotoxic in different percentages. Outcomes of patients after hospital discharge were not evaluated.

Results: Total direct cost of the group of patients who survived without AKI was significantly lower than total direct cost of the groups either with AKI or the group who died without AKI. There was a tendency of even higher costs in those who died with AKI and dialysis. Direct cost of hemodialysis was not as important as the longer hospitalization after sepsis. Considering daily cost of polymyxin is USD60, drugs with 50% less AKI could be considered cost-beneficial if the daily cost is lower than USD160.

Conclusions: AKI in patients with carbapenem-resistant Enterobacteriaceae treated with polymyxin increases both length of stay in hospital and total costs.  相似文献   

70.
An experimental approach is used to examine the performanceof three different multiunit auction designs: discriminatory,uniform-price with fixed supply, and uniform-price with endogenoussupply. We find the actual strategies to be inconsistent withtheoretically identified equilibrium strategies. The discriminatoryauction is found to be more susceptible to collusion than eitheruniform-price auction and so, contrary to theoretical predictionsand previous experimental results, it generates the lowest averagerevenue. Consistent with theoretical predictions, the actualbid schedules are more elastic with reducible supply or discriminatorypricing than in the uniform-price auction with fixed supply.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号