全文获取类型
收费全文 | 3192篇 |
免费 | 137篇 |
出版年
2020年 | 33篇 |
2019年 | 68篇 |
2018年 | 75篇 |
2017年 | 115篇 |
2016年 | 99篇 |
2015年 | 81篇 |
2014年 | 79篇 |
2013年 | 1179篇 |
2012年 | 61篇 |
2011年 | 78篇 |
2010年 | 57篇 |
2009年 | 70篇 |
2008年 | 54篇 |
2007年 | 71篇 |
2006年 | 47篇 |
2005年 | 42篇 |
2004年 | 34篇 |
2003年 | 33篇 |
2002年 | 52篇 |
2001年 | 36篇 |
2000年 | 41篇 |
1999年 | 31篇 |
1998年 | 41篇 |
1997年 | 52篇 |
1996年 | 21篇 |
1995年 | 27篇 |
1994年 | 20篇 |
1993年 | 23篇 |
1992年 | 25篇 |
1991年 | 17篇 |
1990年 | 25篇 |
1989年 | 16篇 |
1988年 | 24篇 |
1987年 | 28篇 |
1986年 | 22篇 |
1985年 | 35篇 |
1984年 | 41篇 |
1983年 | 42篇 |
1982年 | 46篇 |
1981年 | 38篇 |
1980年 | 35篇 |
1979年 | 42篇 |
1978年 | 38篇 |
1977年 | 40篇 |
1976年 | 31篇 |
1975年 | 33篇 |
1974年 | 13篇 |
1973年 | 23篇 |
1972年 | 16篇 |
1971年 | 11篇 |
排序方式: 共有3329条查询结果,搜索用时 15 毫秒
91.
John B. Parr 《Journal of regional science》1993,33(2):167-186
ABSTRACT. A multi-plant producer has sole access to a region, and each of the plants processes a raw material which is drawn from its own exclusive supply area. Under these conditions what spatial structure of production (in terms of plant scale, plant frequency, supply-area size and supply-area shape) will enable region-wide or multi-plant profit to be maximized? The form of this optimal structure is shown to vary with prevailing level of price, which is exogenously determined. 相似文献
92.
93.
94.
95.
96.
97.
98.
99.
100.
John Conybeare 《Australian Journal of International Affairs》1978,32(3):279-298
This paper explores the political context of an increasingly familiar phenomenon: unilateral interference with international trade and payments. The particular case examined is that of US balance of payments policy between 1960 and 1971, during which time the country which had been the world's foremost advocate of an open world economy attempted to separate the US and international capital markets. The policy is explained at two levels: systemic political imperatives to explain the overall structure of policy choices, and domestic bureaucratic politics to explain the changing sources and objectives of policy. The Bretton Woods system linked US political power to the international monetary system in such a way as to leave the US no choices but those of capital export controls or the destruction of the entire system, as the US balance of payments moved into deficit. The domestic policy process reacting to these international strains followed a pattern of progressive politicisation, which lifted the issue out of the hands of the Treasury and into the White House. Finally, it is suggested that an examination of the political structures which led to restrictive policies in the monetary sphere may shed some light on the current trends toward protectionism in the trade area. 相似文献