全文获取类型
收费全文 | 29627篇 |
免费 | 540篇 |
专业分类
财政金融 | 5061篇 |
工业经济 | 2001篇 |
计划管理 | 4922篇 |
经济学 | 6890篇 |
综合类 | 543篇 |
运输经济 | 193篇 |
旅游经济 | 368篇 |
贸易经济 | 5232篇 |
农业经济 | 1263篇 |
经济概况 | 3590篇 |
信息产业经济 | 5篇 |
邮电经济 | 99篇 |
出版年
2023年 | 116篇 |
2021年 | 165篇 |
2020年 | 316篇 |
2019年 | 488篇 |
2018年 | 1125篇 |
2017年 | 1141篇 |
2016年 | 908篇 |
2015年 | 383篇 |
2014年 | 655篇 |
2013年 | 2691篇 |
2012年 | 970篇 |
2011年 | 1436篇 |
2010年 | 1253篇 |
2009年 | 1276篇 |
2008年 | 1204篇 |
2007年 | 1242篇 |
2006年 | 668篇 |
2005年 | 663篇 |
2004年 | 617篇 |
2003年 | 670篇 |
2002年 | 516篇 |
2001年 | 551篇 |
2000年 | 497篇 |
1999年 | 452篇 |
1998年 | 496篇 |
1997年 | 461篇 |
1996年 | 464篇 |
1995年 | 385篇 |
1994年 | 407篇 |
1993年 | 383篇 |
1992年 | 390篇 |
1991年 | 404篇 |
1990年 | 377篇 |
1989年 | 286篇 |
1988年 | 300篇 |
1987年 | 297篇 |
1986年 | 274篇 |
1985年 | 405篇 |
1984年 | 389篇 |
1983年 | 363篇 |
1982年 | 332篇 |
1981年 | 317篇 |
1980年 | 322篇 |
1979年 | 313篇 |
1978年 | 263篇 |
1977年 | 210篇 |
1976年 | 210篇 |
1975年 | 196篇 |
1974年 | 168篇 |
1973年 | 178篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
This paper examines monthly wage data collected by the Agro Economic Survey from seven villages in the Cimanuk River Basin of West Java, where data on agricultural and non-agricultural wages and prices of nine essential commodities were collected twice monthly between 1977 and 1983. Movements in money wages deflated by both the rice price and a weighted index of basic commodities are analysed in detail and differences between lowland and upland villages are discussed. 相似文献
12.
13.
If actively managed mutual funds suffer from diminishing returns to scale, funds should alter investment behavior as assets under management increase. Although asset growth has little effect on the behavior of the typical fund, we find that large funds and small‐cap funds diversify their portfolios in response to growth. Greater diversification, especially for small‐cap funds, is associated with better performance. Fund family growth is related to the introduction of new funds that hold different stocks from their existing siblings. Funds with many siblings diversify less rapidly as they grow, suggesting that the fund family may influence a fund's portfolio strategy. 相似文献
14.
There are two variance components embedded in the returns constructed using high frequency asset prices: the time-varying variance of the unobservable efficient returns that would prevail in a frictionless economy and the variance of the equally unobservable microstructure noise. Using sample moments of high frequency return data recorded at different frequencies, we provide a simple and robust technique to identify both variance components. 相似文献
15.
Models that assume only consumer tastes determine the characteristics of supply are restrictive; producers can gain utility from aspects of production and pay for deviating from demand by accepting lower financial returns. We model and measure motivations of California winery owners, and analyze their effects on quality and price. We find utility–maximizers are more likely to produce high quality and set higher quality–adjusted prices. Profit–oriented owners are less likely to produce high quality wines. These results suggest that the presence of hobbyists who enjoy producing high quality may lower financial returns in the segment and discourage profit–maximizers from locating there. 相似文献
16.
Drawing on qualitative data collected during semi-structured interviews with 36 profit centre managers in manufacturing firms in Victoria, Australia, this study seeks to explore the mechanisms used to manage multiple manufacturing performance dimensions arising from the pursuit of profit centre strategy. Where measures capture potentially conflicting influences on the manufacturing cost function, strategy implementation is facilitated by loosening control reactions to cost variances and through explicit attempts to integrate multiple measures. However, a joint emphasis on performance dimensions relating to manufacturing efficiency and customer responsiveness emerges as problematic. In contrast, a joint emphasis on quality and efficiency is relatively easily managed. It is suggested that in the context of responsiveness strategies, the difficulty of designing complete measures inhibits the effectiveness of performance measurement systems as a facilitator of strategy implementation. 相似文献
17.
The intrinsic value approach amortizes over the life of the option, the difference between the stock price on the date of the grant and the exercise price of the option. The fair market value approach amortizes over the life of the option, the market value of stock options on the date of the grant. These approaches do not reflect the changes in the option–based compensation cost after the grant date. This paper proposes an economic cost approach that not only adjusts for the changes in the value of the options during its life but also records the issuance of the stock at fair market value on the exercise date. 相似文献
18.
An issue in the pricing of contingent claims is whether to account for consumption risk. This is relevant for contingent claims on stock indices, such as the FTSE 100 share price index, as investor’s desire for smooth consumption is often used to explain risk premiums on stock market portfolios, but is not used to explain risk premiums on contingent claims themselves. This paper addresses this fundamental question by allowing for consumption in an economy to be correlated with returns. Daily data on the FTSE 100 share price index are used to compare three option pricing models: the Black–Scholes option pricing model, a GARCH (1, 1) model priced under a risk-neutral framework, and a GARCH (1, 1) model priced under systematic consumption risk. The findings are that accounting for systematic consumption risk only provides improved accuracy for in-the-money call options. When the correlation between consumption and returns increases, the model that accounts for consumption risk will produce lower call option prices than observed prices for in-the-money call options. These results combined imply that the potential consumption-related premium in the market for contingent claims is constant in the case of FTSE 100 index options. 相似文献
19.
Ian M. Dobbs† 《Journal of Business Finance & Accounting》2004,31(5-6):729-757
Replacement investment is essentially a regenerative optimal stopping problem; that is, the key decision concerns when to terminate the life of existing plant – and hence when to start over again. This paper examines this optimisation problem within a continuous time framework and studies the qualitative and quantitative impact of uncertainty on the timing of new investment (and the criteria that should be used for terminating the life of existing plant). 相似文献
20.
This paper examines the influence of unemployment insurance (UI) on the length of nonemployment spells experienced by young workers. The analysis introduces a flexible duration model to estimate the effects of the weekly benefit amount and weeks of eligibility on the amount of time spent between jobs by men, distinguishing between the experiences of UI and non-UI recipients. The empirical findings suggest three conclusions: (1) UI recipients experience longer spells of nonemployment than their non-UI recipient counterparts, at least up to the point of exhaustion of UI benefits; (2) the level of the weekly benefit amount does not significantly affect the length of nonemployment spells; and (3) increasing the number of weeks of eligibility offered by a UI program leads to longer episodes of nonemployment. 相似文献