全文获取类型
收费全文 | 821篇 |
免费 | 57篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 112篇 |
工业经济 | 26篇 |
计划管理 | 412篇 |
经济学 | 114篇 |
综合类 | 31篇 |
运输经济 | 4篇 |
旅游经济 | 15篇 |
贸易经济 | 89篇 |
农业经济 | 47篇 |
经济概况 | 29篇 |
出版年
2023年 | 9篇 |
2022年 | 4篇 |
2021年 | 22篇 |
2020年 | 32篇 |
2019年 | 43篇 |
2018年 | 31篇 |
2017年 | 37篇 |
2016年 | 40篇 |
2015年 | 22篇 |
2014年 | 48篇 |
2013年 | 78篇 |
2012年 | 32篇 |
2011年 | 49篇 |
2010年 | 25篇 |
2009年 | 46篇 |
2008年 | 43篇 |
2007年 | 35篇 |
2006年 | 28篇 |
2005年 | 28篇 |
2004年 | 35篇 |
2003年 | 27篇 |
2002年 | 19篇 |
2001年 | 18篇 |
2000年 | 16篇 |
1999年 | 10篇 |
1998年 | 15篇 |
1997年 | 16篇 |
1996年 | 9篇 |
1995年 | 9篇 |
1994年 | 9篇 |
1993年 | 6篇 |
1992年 | 5篇 |
1991年 | 6篇 |
1990年 | 3篇 |
1989年 | 8篇 |
1988年 | 1篇 |
1987年 | 6篇 |
1986年 | 1篇 |
1985年 | 3篇 |
1984年 | 2篇 |
1983年 | 2篇 |
1982年 | 1篇 |
排序方式: 共有879条查询结果,搜索用时 31 毫秒
91.
This paper is preliminary information on some empirical findings based on an analysis of Thailand's macroeconomic data. The purpose of the study is to quantify social-economic well-being development with special emphasis on poverty. The maximum entropy bootstrap was presented that did not require the property of stationarity. Moreover, the methodology was stratified both the ergodic theorem and the central limit theorem. Thailand's GINI index and Thailand-Japan's volume of trade data cover the 14-year period from 1998 to 2011. There is a statistically significant negative non-linear relationship between endogenous Thailand's GINI index and exogenous Thailand-Japan's volume of trade. The results confirmed that every lagged one percent increase in Thailand-Japan's volume of trade influenced by a decrease of Thailand's GINI index coefficient 0.039 percent with the asymmetric around 0-almost closed to range condition -0.034824348 at 2.5%. 相似文献
92.
Zheng Wang 《The Journal of Real Estate Finance and Economics》2004,29(1):99-118
In a multivariate vector autoregression framework, this paper investigates the weak efficiency of the urban residential real estate market and the cause of weak efficiency. An error correction model is used to estimate long-term relationships among apartment prices and adjustment speed from disequilibrium to equilibrium. Based on a unique dataset of the Manhattan market, the efficiency of this market, seasonal stationarity of property prices, and the weak exogeneity of leading sub-markets are studied. Our results indicate that, in a market of less heterogeneity and higher transaction volumes, the weak efficiency hypothesis is rejected as in previous studies. This result implies that heterogeneity and lack of transaction information may not be the direct source of market inefficiency. Meanwhile, it is found that there are stable long-term relations among prices of different sub-markets. Interestingly, the price of one-bedroom co-operatives (co-op) is weakly exogenous. This implies that the starting co-op for most home buyers in urban areas is a leading indicator of the entire market, which contradicts the claim that high-end luxury co-op leads the market. 相似文献
93.
Armineh Zohrabian Greg Traxler Steven Caudill Melinda Smale 《American journal of agricultural economics》2003,85(2):429-436
Genetic improvement has been a major contributor to agricultural productivity in the United States, but many questions about the economics of crop breeding, such as the value of pre-commercial germplasm, remain unanswered. This study estimates the marginal value of poorly characterized materials contained in the U.S. national germplasm system. Within the search theoretic framework, we apply a maximum entropy method to estimate the probability and the expected level of improvement in pest susceptibility relative to its best previously observed level. The results indicate that the lower-bound estimate of benefit is significantly higher than the upper-bound cost of conserving an accession. 相似文献
94.
95.
Estimation in the interval censoring model is considered. A class of smooth functionals is introduced, of which the mean is an example. We consider case 2, with two observation times for each unobservable event time, in the situation that the observation times cannot become arbitrarily close to each other. It is proved that the nonparametric maximum likelihood estimator of the functional asymptotically reaches the information lower bound. 相似文献
96.
97.
This article empirically models a strategic game of technology adoption of shuttle train grain elevators with information on location of the firm and its competitors. A spatial econometric model illustrates the role of spatial interdependence of rivals' decisions as well as agronomic and competitive variables on discrete adoption decisions. The analysis assesses equilibria conditions that characterize technology adoption, in this case of shuttle train adoption, and the results provide an explanation of shuttle train adoption decisions in the grain handling industry in which spatial competition is critical. 相似文献
98.
Performance of empirical Bayes estimators of random coefficients in multilevel analysis: Some results for the random intercept-only model 总被引:1,自引:0,他引:1
Math J. J. M. Candel 《Statistica Neerlandica》2004,58(2):197-219
For a multilevel model with two levels and only a random intercept, the quality of different estimators of the random intercept is examined. Analytical results are given for the marginal model interpretation where negative estimates of the variance components are allowed for. Except for four or five level-2 units, the Empirical Bayes Estimator (EBE) has a lower average Bayes risk than the Ordinary Least Squares Estimator (OLSE). The EBEs based on restricted maximum likelihood (REML) estimators of the variance components have a lower Bayes risk than the EBEs based on maximum likelihood (ML) estimators. For the hierarchical model interpretation, where estimates of the variance components are restricted being positive, Monte Carlo simulations were done. In this case the EBE has a lower average Bayes risk than the OLSE, also for four or five level-2 units. For large numbers of level-1 (30) or level-2 units (100), the performances of REML-based and ML-based EBEs are comparable. For small numbers of level-1 (10) and level-2 units (25), the REML-based EBEs have a lower Bayes risk than ML-based EBEs only for high intraclass correlations (0.5). 相似文献
99.
Alicja Jokiel-Rokita 《Metrika》2006,64(3):259-269
Characterizations of gamma-minimax predictors for the linear combinations of the unknown parameter and the random variable having the multinomial distribution under arbitrary squared error loss are established in two situations – when the sample size is fixed and when the sample size is a realization of a random variable. It is always assumed that the available vague prior information about the unknown parameter can be described by a class of priors whose vector of first moments belongs to a suitable convex and compact set. Several known gamma-minimax and minimax results can be obtained from the characterizations derived in the present paper. 相似文献
100.