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   4956篇
  免费   180篇
  国内免费   2篇
财政金融   1803篇
工业经济   41篇
计划管理   482篇
经济学   2000篇
综合类   84篇
运输经济   2篇
旅游经济   2篇
贸易经济   138篇
农业经济   70篇
经济概况   516篇
  2024年   5篇
  2023年   19篇
  2022年   19篇
  2021年   50篇
  2020年   260篇
  2019年   228篇
  2018年   131篇
  2017年   168篇
  2016年   101篇
  2015年   174篇
  2014年   315篇
  2013年   378篇
  2012年   403篇
  2011年   599篇
  2010年   335篇
  2009年   342篇
  2008年   314篇
  2007年   379篇
  2006年   265篇
  2005年   175篇
  2004年   122篇
  2003年   77篇
  2002年   44篇
  2001年   30篇
  2000年   20篇
  1999年   25篇
  1998年   24篇
  1997年   37篇
  1996年   20篇
  1995年   14篇
  1994年   9篇
  1993年   6篇
  1985年   10篇
  1984年   8篇
  1983年   5篇
  1982年   8篇
  1981年   5篇
  1980年   6篇
  1979年   5篇
  1978年   1篇
  1977年   1篇
  1973年   1篇
排序方式: 共有5138条查询结果,搜索用时 17 毫秒
991.
    
Interest in supporting local and regional food systems is rising and food hubs have attracted considerable attention among Federal, State, and local policymakers. This study explores the problem of endogenous hub location in fresh produce value chains in the Northeastern United States. To overcome limitations in the literature, we incorporate the effects of economies of scale and production seasonality into our models. Three experimental models are designed to examine the effects of alternatively applying yearly, quarterly, and monthly data on model solutions. We explicitly assess how interactions of scale economies and seasonality influence the structure and spatial attributes of an optimal regional produce aggregation hub system. The three models generate marketed different solutions and in many respects they lead to different conclusions about developing local/regional supply chains. The monthly model allows for production seasonality and actual hub operation cycle frequency and thus leads to more efficient hub solution with rich policy implications.  相似文献   
992.
We present a new method for consistent cross‐sectional pricing of all traded bonds in the fixed income market. By applying thin plate regression splines ( Wood, 2003 ) to bootstrapped zero coupon bond yields ( Hagan and West, 2006 ), the method decomposes traded yields into a risk‐free component plus premia for credit and liquidity risks, where the decomposition is consistent with the market valuations and underlying cash flows of the bonds. We apply the framework to end of quarter yield data from 2008 to 2011 on Australian dollar denominated semi‐government, supranational and agency (SSA) bonds, and find that the surface provides an excellent fit to the underlying zero coupon yield curves. Further, the decomposition of selected yield time series and cross‐sections demonstrates how credit premia increased for Australian SSA bonds through the Global Financial Crisis (GFC), but were counterbalanced by liquidity discounts as investors sought safe haven securities.  相似文献   
993.
We show how the silver standard transmitted world silver price fluctuations into China and made the Chinese price level closely linked to the world silver price. Inflation was transmitted between 1929 and 1931 when the world silver price was falling; while deflation was transmitted during 1932 and 1934 when the world silver price was rising. Using micro-level evidence and counterfactual simulations, we show that the exchange rate was the main shock transmission channel, and silver stocks played an insignificant role.  相似文献   
994.
    
This paper investigates whether political instability leads to volatile inflation using a panel of 49 African countries. The study uses novel measures of political instability, particularly the state failure index and state fragility index. In the field of political instability and inflation volatility, this is the first study to measure inflation volatility as the conditional variance of inflation estimated from GARCH (1, 1) model. Adopting the system‐generalized method of moments estimator for linear dynamic panel models for the sample period 1985‐2009, the study documents a positive statistically significant effect of political instability on inflation volatility.  相似文献   
995.
    
The paper examines the monetary policy actions through which central banks in sub‐Saharan Africa have tried to eliminate the negative impacts of the shocks facing their economies. We compare two different monetary policy regimes: a currency board regime (in the CFA zone) and an inflation targeting policy regime (Ghana and South Africa) when central banks respond to demand, supply, and fiscal shocks. We extend the usual forecasting and policy analysis system models to replicate the economic features of these economies during the period 2002–12 and to evaluate the impact of several policies in response to these shocks. We find that both policies are inappropriate in helping the economies escape from the effects of negative demand shocks, both are essential when negative shocks to primary balance occur, while inflation targeting dominates the currency board regime as a strategy to cope with positive shocks to inflation.  相似文献   
996.
    
This study employs recent Singaporean tourism survey data, the updated Singaporean input–output tables and a computable general equilibrium model to gauge the long‐run effects of the 2008 global financial crisis and selected policy responses. The simulation results suggest that the global financial crisis has had mild negative long‐run effects on the overall development of Singapore's economy, and that the GST deduction policy ought to offset this negative effect.  相似文献   
997.
Money, Interest Rate Spreads, and Economic Activity. —Numerous empirical studies for industrial countries have shown that the term structure of interest rates is a good indicator for future output growth. This paper analyzes whether the interest rate spread contains any additional predictive power if the model includes the money stock. A multivariate error-correction framework is applied to three European economies — France, Germany, and Italy. Granger causality tests are performed for various monetary aggregates and the term structure. The evidence concerning the marginal information content is mixed: For France and Italy, the term structure does not improve the results of the basic model whereas it is significant for Germany.  相似文献   
998.
This paper analyzes the effects of wages, openness, and demand on employment in the private manufacturing industry in Turkey based on panel data for the period of 1973–2001. The wage elasticity of employment increases after trade liberalization. Nevertheless, output elasticity of labor demand is higher than wage elasticity in the total manufacturing sector for the whole estimation period, and in the high- and medium-skilled sectors in the post-1980 period. Trade effects, after controlling for output, seem to have a low economic significance. The positive effects of exports on the labor intensity of production are low or are offset by labor saving effects of foreign trade, particularly in the high- and medium-skilled sectors. On the other hand, there is some evidence of a negative import effect in the low-skilled sectors, whereas in the high- and medium-skilled group a complementary relation between domestic labor and imported inputs dominates the effects.  相似文献   
999.
This paper estimates how strongly COVID-19 containment policies have impacted aggregate economic activity. We use a difference-in-differences methodology to estimate how containment zones of different severity across India impacted district-level nighttime light intensity, as well as household income and consumption. From May to July 2020, nighttime light intensity was 9.1 % lower in districts with the most severe restrictions compared with districts with the least severe restrictions, which could imply between 5.8 % and 6.6 % lower GDP. Nighttime light intensity was only 1.6 % lower in districts with intermediate restrictions. The differences were largest in May during the graded lockdown, and tapered in June and July. Lower house-hold income and consumption corresponding to zone-wise restrictions corroborate these results. Stricter containment measures had larger impacts in districts with greater population density, older residents, and more services employment. The large magnitudes of the findings suggest that governments should carefully consider the economic costs of country-wide pandemic containment policies while weighing the trade-offs against public health benefits. Keywords: Containment policies, COVID-19, Nighttime lights, India  相似文献   
1000.
We analyze forecasts of car sales in the U.S. and forecasts of car registrations in Japan. We document a substantial heterogeneity of forecasts, and we show that, based on traditional criteria, forecasts are neither rational nor unbiased. We also report that forecasters anti-herd, that is, forecasters seem to intentionally scatter their forecasts around a consensus forecast. We further show that cross-sectional heterogeneity of forecasts with regard to anti-herding transmits onto cross-sectional heterogeneity of forecast accuracy. Specifically, we document that forecasters who herd provide more accurate forecasts than their colleagues who anti-herd.  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