全文获取类型
收费全文 | 5426篇 |
免费 | 230篇 |
专业分类
各国政治 | 379篇 |
工人农民 | 191篇 |
世界政治 | 580篇 |
外交国际关系 | 418篇 |
法律 | 2373篇 |
中国政治 | 48篇 |
政治理论 | 1608篇 |
综合类 | 59篇 |
出版年
2023年 | 39篇 |
2022年 | 19篇 |
2021年 | 41篇 |
2020年 | 87篇 |
2019年 | 115篇 |
2018年 | 199篇 |
2017年 | 196篇 |
2016年 | 253篇 |
2015年 | 141篇 |
2014年 | 158篇 |
2013年 | 875篇 |
2012年 | 179篇 |
2011年 | 178篇 |
2010年 | 148篇 |
2009年 | 155篇 |
2008年 | 201篇 |
2007年 | 240篇 |
2006年 | 210篇 |
2005年 | 189篇 |
2004年 | 194篇 |
2003年 | 161篇 |
2002年 | 162篇 |
2001年 | 103篇 |
2000年 | 98篇 |
1999年 | 106篇 |
1998年 | 83篇 |
1997年 | 88篇 |
1996年 | 71篇 |
1995年 | 63篇 |
1994年 | 70篇 |
1993年 | 78篇 |
1992年 | 66篇 |
1991年 | 62篇 |
1990年 | 62篇 |
1989年 | 52篇 |
1988年 | 62篇 |
1987年 | 40篇 |
1986年 | 49篇 |
1985年 | 38篇 |
1984年 | 39篇 |
1983年 | 30篇 |
1982年 | 28篇 |
1981年 | 31篇 |
1980年 | 19篇 |
1979年 | 19篇 |
1978年 | 20篇 |
1977年 | 16篇 |
1976年 | 14篇 |
1975年 | 14篇 |
1974年 | 30篇 |
排序方式: 共有5656条查询结果,搜索用时 11 毫秒
991.
992.
993.
Abstract We examine the characteristics of 14 stable racially and ethnically diverse urban communities in 9 U.S. cities and point to policies that could strengthen these communities and encourage the growth of more diverse neighborhoods in American cities. The cities examined are Chicago; Denver; Houston; Memphis, TN; Milwaukee; New York; Oakland, CA; Philadelphia; and Seattle. University researchers and community leaders in each city collaborated on the research for this project. We identify two types of stable diverse communities, “self‐conscious” and “laissez‐faire,” which have evolved for different reasons and with different characteristics. Stable diverse communities will not just happen, but they can be influenced by a number of policy recommendations stemming from our research. These include helping individuals and organizations take leadership roles in their communities, strengthening and enforcing fair housing and antidiscrimination laws, earmarking economic resources to encourage neighborhood diversity, and creating community safety and jobs programs. 相似文献
994.
Abstract Historic preservation contributes greatly to housing and economic development. Historic preservation has produced almost 250,000 housing units through use of the federal historic rehabilitation tax credit. Additionally, heritage tourism is a multibillion‐dollar industry, and preservation projects help further community revitalization. Historic preservation also has a downside. Preservation's growing popularity may dilute its imperative and market prowess, and some argue it is used to thwart new development. Preservation requirements may impede affordable housing production and displace area residents. These undesirable consequences are not givens, however. Preservationists are working to become more flexible, and we suggest ways to practice historic preservation while mitigating some of its negative consequences—for example, tax credit changes, more flexible building codes, and a “tiered” system of designating historic properties at varying levels of significance. 相似文献
995.
Abstract The large influx of immigrants to the United States and New York City from poorer countries has sparked considerable debate as to whether immigrants are becoming a “public charge” to American society. Most arguments have centered around immigrants’ use of cash assistance programs. This article compares immigrants’ receipt of rental housing assistance with that of native‐born Americans. Bivariate analyses reveal that immigrants, as a group, are no more likely than native‐born households to use any form of rental housing assistance. Indeed, in most instances immigrants are less likely than native‐born households to receive assistance, with two exceptions: immigrants who have been in the United States since 1970 and immigrants from the former Soviet Union in New York City. Multivariate analyses reveal similar results, except that immigrants who have been in the United States since 1970 are no more likely than other immigrants to receive housing assistance when we control for other factors. 相似文献
996.
Michael H. Schill Ingrid Gould Ellen Amy Ellen Schwartz Ioan Voicu 《Housing Policy Debate》2013,23(3):529-566
Abstract This article examines the impact of New York City's Ten‐Year Plan on the sale prices of homes in surrounding neighborhoods. Beginning in the mid‐1980s, New York City invested $5.1 billion in constructing or rehabilitating over 180,000 units of housing in many of the city's most distressed neighborhoods. One of the main purposes was to spur neighborhood revitalization. In this article, we describe the origins of the Ten‐Year Plan, as well as the various programs the city used to implement it, and estimate whether housing built or rehabilitated under the Ten‐Year Plan affected the prices of nearby homes. The prices of homes within 500 feet of Ten‐Year Plan units rose relative to those located beyond 500 feet, but still within the same census tract. These findings are consistent with the proposition that well‐planned project‐based housing programs can generate positive spillover effects and contribute to efforts to revitalize inner‐city neighborhoods. 相似文献
997.
This article examines the idea that residential minimum parking requirements are associated with lower housing and population densities and higher vehicle densities (residential vehicles per square mile). Cities frequently use minimum parking requirements to manage traffic, but parking requirements accommodate vehicles, suggesting they should lead to more driving and congestion rather than less. If parking requirements reduce congestion, they likely do so not by reducing the number of vehicles in an area but by reducing the densities of housing and people. We support this idea by comparing the Los Angeles and New York urbanized areas. We show that differences in housing, vehicle, and population densities across and within these urbanized areas are closely correlated with differences in the share of housing units that include parking, and that the share of housing units that include parking is in turn correlated with the stringency of parking requirements. Compared with Los Angeles, New York shifts less of the cost of driving into its housing market. We further show that within New York City, a 10% increase in minimum parking requirements is associated with a 5% increase in vehicles per square mile, a 4% increase in vehicles per person, and a 6% reduction in both population density and housing density. These relationships remain even after controlling for street layout and proximity to the subway. 相似文献
998.
Michael H. Schill 《Housing Policy Debate》2013,23(4):503-515
Abstract Since the 1960s, judges and legislatures have made it increasingly difficult for landlords to evict tenants even in those instances where tenants have breached their leases. Sometimes, the growth of tenant protections has actually harmed law‐abiding tenants by raising costs to landlords and allowing rule‐breakers to remain in their apartments. Most landlords and tenants should want a system of laws that provides for both fair and efficient eviction procedures. Tenants should be entitled to legal representation when they are threatened with eviction, but their attorneys should not use the legal system to obtain free accommodations for their clients. In the end, efforts to improve the housing of low‐ and moderate‐income households should rely not on setting up impediments to eviction, but rather on increasing tenants’ ability to afford housing and reducing the cost of housing development and operation. 相似文献
999.
We propose to shed light on the effect of globalization on the choice of policy tools. Contrary to what is commonly believed, we find that the source of many of the changes in the patterns of instrument choice found in contemporary society lies in the domestic rather than the international arena. To the extent that global factors have had an effect, it is through what we term indirect and opportunity effects rather than direct ones. Further, we argue that traditional command and control instruments are not antithetical to globalization as is evident in their continued, and at times even increasing, use in a variety of settings. We conclude that what is important for policymakers is to ensure that their choice of instruments is consistent with traditional sectoral and national policy styles, with or without globalization. 相似文献
1000.
ABSTRACT Public sector ethics is a topic of ongoing concern in developed democracies. The most popular theoretical approach to this issue is found in principal–agent theory literature. This approach assumes that public sector organizations are populated by principals and agents, each of whom pursue their own self-interest, with agents having a persistent informational advantage. A second approach to ethical conflicts focuses on cognitive processes. According to cognitive theory, all decision makers are vulnerable to “ethical numbing,” particularly in organizational settings that condone the substitution of personal agendas for organizational goals. We argue that Canada's sponsorship scandal has been interpreted almost exclusively from a principal–agent perspective, with subsequent reforms firmly based on introducing new rules to oblige agents to advance the interests of principals. While more faithful adherence to established rules by agents would have avoided a scandal, such adherence is unlikely to be achieved through incentives, monitoring, and penalties as suggested by principal–agent theory. The policy message contained in and implied by the cognitive framework suggests that the focus must be on creating an organizational learning environment that discourages responsible public officials from reframing decision situations in a manner that allows them to become morally disengaged. 相似文献