全文获取类型
收费全文 | 14549篇 |
免费 | 317篇 |
国内免费 | 13篇 |
专业分类
财政金融 | 2651篇 |
工业经济 | 1129篇 |
计划管理 | 2435篇 |
经济学 | 3072篇 |
综合类 | 304篇 |
运输经济 | 90篇 |
旅游经济 | 287篇 |
贸易经济 | 2627篇 |
农业经济 | 742篇 |
经济概况 | 1517篇 |
邮电经济 | 25篇 |
出版年
2021年 | 92篇 |
2020年 | 155篇 |
2019年 | 228篇 |
2018年 | 291篇 |
2017年 | 330篇 |
2016年 | 298篇 |
2015年 | 219篇 |
2014年 | 340篇 |
2013年 | 1391篇 |
2012年 | 383篇 |
2011年 | 406篇 |
2010年 | 394篇 |
2009年 | 424篇 |
2008年 | 477篇 |
2007年 | 439篇 |
2006年 | 361篇 |
2005年 | 353篇 |
2004年 | 325篇 |
2003年 | 328篇 |
2002年 | 316篇 |
2001年 | 290篇 |
2000年 | 301篇 |
1999年 | 263篇 |
1998年 | 272篇 |
1997年 | 272篇 |
1996年 | 270篇 |
1995年 | 250篇 |
1994年 | 241篇 |
1993年 | 257篇 |
1992年 | 254篇 |
1991年 | 238篇 |
1990年 | 230篇 |
1989年 | 191篇 |
1988年 | 154篇 |
1987年 | 184篇 |
1986年 | 185篇 |
1985年 | 281篇 |
1984年 | 295篇 |
1983年 | 273篇 |
1982年 | 248篇 |
1981年 | 246篇 |
1980年 | 209篇 |
1979年 | 223篇 |
1978年 | 167篇 |
1977年 | 172篇 |
1976年 | 150篇 |
1975年 | 119篇 |
1974年 | 113篇 |
1973年 | 102篇 |
1972年 | 71篇 |
排序方式: 共有10000条查询结果,搜索用时 21 毫秒
201.
202.
203.
Much of the movement toward mandatory beverage deposit legislation has withered away in the current anti-regulation mood of the country. Even before the change in mood, the major focus of deposit laws was moving away from litter control and toward energy and resource savings. In fact, deposit laws have had a variety of repercussions on such factors as jobs, consumer prices, industry capital expenditures, energy consumption, and litter. The cooling emotions and lapse in time since most of the regulations were enacted provide a good opportunity to sort through the arguments and review the results. This paper attempts to present a balanced view of the issues surrounding this complicated topic. It find that the consequences of mandatory deposits have generally been somewhere between the initial predictions of groups favoring legislation and those opposing it. 相似文献
204.
205.
The innovation-adoption framework is used to determine consumers' levels of awareness of AMIs and the degrees to which they are able and willing to evaluate and/or accept the complicated alternatives available to them. A mail survey of consumers in Illinois and Wisconsin was structured to compare previous studies on this topic and to compare consumers across various demographic categories. Results indicate that awareness of AMIs is increasing, as is the willingness to accept them with an initial interest rate discount and a limitation on the range over which the interest rate can fluctuate. Findings suggest that some consumers have moved beyond the information-gathering stage, now view nontraditional mortgages as a legitimate mechanism for financing home purchases, and are willing to accept certain configurations of these instruments. 相似文献
206.
On-line supervision exhibits in many respects properties complementary to those of established off-line safety tests. Thus, on-line methods are powerful tools for increasing the safety of chemical processes, especially in situations where unexpected hazards could occur. Known on-line supervising methods are described and their advantage and disadvantages are briefly discussed. The abilities of various on-line methods are demonstrated on a real case. 相似文献
207.
208.
209.
Although methods such as contingent valuation have received a great deal of attention in environmental valuation literature, fewer studies have reported willingness-to-pay estimates with agribusiness applications. Because agribusinesses are increasingly interested in producing and selling differentiated goods and services whose values has not been established by well-functioning markets, we provide a short introduction to willingness-to-pay methodology and provide a discussion of several different methods used to estimate willingness-to-pay. More specifically, we discuss how much of the work in environmental and experimental valuation literature can be extended to agribusiness applications, which have their own set of unique issues. 相似文献
210.
Darren L. Frechette 《American journal of agricultural economics》2001,83(1):52-63
Market liquidity requires differences of opinion among traders, but market behavior is often modeled using just one representative agent. This paper aggregates trading activity across many traders, at least one of which has rational expectations. Equilibrium price expectations depend on individual risk preferences and the expectations of all traders. Results indicate that positive feedback traders comprise a statistically significant minority of traders that has grown with the prevalence of commodity pools. 相似文献