全文获取类型
收费全文 | 311篇 |
免费 | 18篇 |
专业分类
财政金融 | 32篇 |
工业经济 | 8篇 |
计划管理 | 74篇 |
经济学 | 82篇 |
综合类 | 1篇 |
运输经济 | 7篇 |
旅游经济 | 4篇 |
贸易经济 | 98篇 |
农业经济 | 7篇 |
经济概况 | 12篇 |
邮电经济 | 4篇 |
出版年
2023年 | 8篇 |
2022年 | 1篇 |
2021年 | 13篇 |
2020年 | 10篇 |
2019年 | 18篇 |
2018年 | 21篇 |
2017年 | 21篇 |
2016年 | 25篇 |
2015年 | 9篇 |
2014年 | 17篇 |
2013年 | 61篇 |
2012年 | 22篇 |
2011年 | 13篇 |
2010年 | 4篇 |
2009年 | 20篇 |
2008年 | 11篇 |
2007年 | 12篇 |
2006年 | 5篇 |
2005年 | 8篇 |
2004年 | 4篇 |
2003年 | 5篇 |
2002年 | 5篇 |
2001年 | 6篇 |
2000年 | 3篇 |
1999年 | 2篇 |
1998年 | 2篇 |
1993年 | 1篇 |
1990年 | 1篇 |
1984年 | 1篇 |
排序方式: 共有329条查询结果,搜索用时 15 毫秒
41.
Silvia Figini Roberto Savona Marika Vezzoli 《International Journal of Intelligent Systems in Accounting, Finance & Management》2016,23(1-2):6-20
Focusing on credit risk modelling, this paper introduces a novel approach for ensemble modelling based on a normative linear pooling. Models are first classified as dominant and competitive, and the pooling is run using the competitive models only. Numerical experiments based on parametric (logit, Bayesian model averaging) and nonparametric (classification tree, random forest, bagging, boosting) model comparison shows that the proposed ensemble performs better than alternative approaches, in particular when different modelling cultures are mixed together (logit and classification tree). Copyright © 2016 John Wiley & Sons, Ltd. 相似文献
42.
The Governance of Networks and Economic Power: The Nature and Impact of Subcontracting Relationships 总被引:1,自引:0,他引:1
Abstract. Current debate on networking focuses on network structures and firm strategies. In this perspective, theoretical analysis has been concerned with allocative issues. This essay proposes a different interpretation. Starting from the existing theoretical framework, we emphasise the nature and the implications of different types of networks with respect to socio‐economic development from a distributional point of view. Within this context, we develop the analysis of subcontracting starting from the concept of economic power. We then provide an analysis of governance in production by considering the attitudes and the nature of the actors involved. The externalisation of activities by large transnationals, which characterises current corporate restructuring, is often related to the search for greater flexibility, but also for greater power over governments, labour, and subcontractors. Differently, networks based on the mutual dependence of actors, which are not necessarily built around a large firm, could – under particular conditions – reach large production scales or more complex scopes without breaking the links with territorial systems, thus including local objectives in the strategic decision‐making process. Our conclusion is that the impact of subcontracting networks varies enormously. This is crucial to an understanding of future trends and possibilities. Not least, firms and public policy agencies need to understand the implications of different forms of subcontracting network and how those forms actually differ in practice. 相似文献
43.
We propose a forward-looking method to estimate the path for the federal funds target rate. We utilize six-month out probabilities of inflationary and disinflationary pressures, along with a labor market index, to estimate the fed funds rate. We further suggest that due to the changing nature of economies and impending risks to the economic outlook, a time-varying method (consistent with the nature of risks) would help decision makers to improve effective decision making. Our econometric results suggest disinflation (or disinflationary pressure), not inflationary pressure, best explains fed funds rate movements from the 1990s forward. Based on June 2016 data, there is a 55 percent chance that the inflation rate would stay below 1.5 percent during the next six months. The recent higher disinflationary pressure probability may be one reason the FOMC has repeatedly lowered its path for the fed funds rate. Unfortunately, the low-inflation zombie is real. 相似文献
44.
We propose an ordered probit framework to simultaneously predict the probabilities of recession, weaker recovery, and stronger recovery. Our approach helps identify (a) whether the next phase is a recession, (b) when the recovery period starts, and (c) whether the recovery would be a weak or strong one compared to historical standards. We believe our approach would help policy makers decide when would be appropriate to (1) start expansionary policies (higher probabilities of recession), (2) continue expansionary policies (higher probabilities of weaker recovery), or (3) turn to neutral/contractionary policies (higher probabilities of stronger recovery). The ordered probit model shows the probabilities of recession staying above 50 percent during all five recessions in our simulated out-of-sample analysis of 1980:Q1–2016:Q1. The probabilities of weaker recovery are consistent with actual periods of below trend growth. Based on 2016:Q1 data, the model suggests a meaningfully higher chance of continuing below trend growth. One key result is that the probability of weaker growth has been persistently higher than the other two scenarios for the past several years. These higher probabilities of weak growth are consistent with the accommodative monetary policy stance of the past eight years. 相似文献
45.
Silvia T. Morales-Gualdrón Antonio Gutiérrez-Gracia Salvador Roig Dobón 《The International Entrepreneurship and Management Journal》2009,5(3):301-317
In this paper we propose a model to analyse the motivation of academic entrepreneurs that comprises six dimensions: personal,
relating to the entrepreneurial opportunity, to scientific knowledge, to the availability of resources, to the incubator organization,
and to the social environment. The model is tested based on information from a survey administered to 152 Spanish academic
entrepreneurs. Our results show that entrepreneurial opportunity is not part of the entrepreneurial motivation, but is of
the utmost importance to academic entrepreneurs. Also, we find the scientific knowledge is the main driver of entrepreneurial
activity in the academia. 相似文献
46.
The dynamic programming approach for a family of optimal investment models with vintage capital is here developed. The problem falls into the class of infinite horizon optimal control problems of PDE’s with age structure that have been studied in various papers (12, 11, 33 and 35) either in cases when explicit solutions can be found or using Maximum Principle techniques. 相似文献
47.
This work explores the relationship between exports, global value chains (GVCs)’ participation and position, and firms’ productivity. To this aim, we combine the most recent World Bank Enterprise Survey in Latin American and Caribbean (LAC) countries with the Organisation for Economic Co-operation and Development and World Trade Organization trade in value-added data. To explore the above relationship, we adopt an extended version of the standard Cobb-Douglas output function including indicators of export performance and GVCs. We control for heterogeneity among firms (by country, region, and industry), sample selection, firms’ characteristics, and reverse causality. Our empirical outcomes confirm the presence of a positive relationship between participation in international activities and firm performance. They also show that both participation in GVCs and position within GVCs matter. These findings have strong policy implications and may help policymakers in choosing the best policy options to enhance the link between GVCs’ integration and firms’ productivity. 相似文献
48.
49.
This paper investigates the impact of migration on the food expenditure and household food security status of migrant‐sending households using data from eastern Indonesia. We find that migration significantly increases food expenditure and overall household expenditure. Combining the food frequency and food consumption module of the Indonesia Family Life Survey (East), this paper shows that having at least one migrant in the family increases the composite index of Food Consumption Score, as well as the family's food security. Evaluation of food diversity also shows that migration increases expenditure on six out of ten food groups. 相似文献
50.
In this study we examine regional data on per worker GDP, disaggregated at sectoral level, by focusing our interest on the
role of differences in the sectoral composition of activities, and in productivity gaps that are uniform across sectors, in
explaining the catching-up process, which is realized through physical and human capital as well as technological knowledge
accumulation. Our objective is to investigate how much of the interregional inequality in aggregate productivity per worker
is imputable to each component. A methodology for identifying and analyzing sources of inequality from a decomposed perspective
is developed in the growth framework by combining a shift-share based technique and a SUR model specification for the conditional-convergence
analysis. The proposed approach is employed to analyze aggregate interregional inequality of per worker productivity levels
in Italy over the period 1970–2000. With respect to the existing empirical results, our approach provides a more comprehensive
and detailed examination of the contribution of each identified component in explaining the regional productivity gaps in
Italy. It is argued that region-specific productivity differentials, uniform across sectors, explain a quite large share of
differences in productivity per worker. However, sectoral composition plays a non negligible role, although decreasing since
the end of 1980s, and very different productivity patterns emerge within geographical areas.
相似文献
Silvia BertarelliEmail: |