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Since Provan and Milward’s article in 1995, a wide variety of conceptualizations and measures of network performance has been proposed. The lack of consensus among scholars generated a confusing landscape. In an attempt to wind a skein into a ball, our paper aims to synthesize the conceptualizations and measures of network performance proposed by the existing literature and explore their statistical and theoretical relationships. Structural equation modelling techniques were used for this purpose. 相似文献
53.
This article analyzes the costs and benefits of different degreesof competition and different configurations of permissible activitiesin the financial sector and discusses the related implicationsfor regulation and supervision. Theory and experience demonstratethe importance of competition for efficiency and confirm thata competitive environment requires a contestable systemmeaningone that is open to competitionbut not necessarily alarge number of institutions. A competitive banking system canimprove the distribution of consumer credit, enhance the corporatesector's access to financing, and mitigate the risks of financialcrises. In an open market, in which services and products areprovided in response to market signals, financial institutionsrespond by offering a wider scope of financial services. Theoptimal institutional design for supervisory functions is lessobvious. 相似文献
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Most studies of poverty and inequality in South Africa measure individual welfare by deflating total household resources, such as income, by household size. This per-capita method makes no adjustments for the different consumption needs of children or for household economies of scale. However, in addition to being more likely to live in households where average per-capita household income is lower compared with men, we show that women in South Africa also live in significantly larger households which include more children. These gendered differences in household composition are driven to a large degree by low rates of co-residency between men and women. We therefore investigate how adjusting household resources for the presence of children and economies of scale affects measures of the gender gap in income. 相似文献
56.
Taxation changes the expectations of prospective university students about their future level and uncertainty of after-tax
income. To estimate the impact of taxes on university enrollment, we estimate a structural microeconometric model, in which
a high-school graduate decides to enter university studies if expected lifetime utility from this choice is greater than that
anticipated from starting to work right away. We estimate the ex-ante future paths of the expectation and variance of after-tax
income for German high-school graduates, accounting for nonrandom selection. The enrollment model takes into account university
dropout and unemployment risks. Consistently with expectations, the estimation results indicate that higher expected returns
to a tertiary education increase the probability of university enrollment, whereas higher uncertainty among graduates decreases
enrollment rates. A simulation based on the estimated model indicates that a revenue-neutral, flat-rate tax reform with an
unchanged basic tax allowance would increase enrollment rates for men in Germany. 相似文献
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Maria L. Loureiro Anna Sanz‐de‐Galdeano Daniela Vuri 《Oxford bulletin of economics and statistics》2010,72(6):717-743
We use instrumental variable methods to investigate whether the impact of parental smoking habits on their children's smoking decisions is a causal one. We find suggestive evidence of same‐sex role models in two‐parent households: mothers play a more crucial role in determining their daughters’ smoking decisions, whereas fathers’ smoking habits are primarily imitated by their sons. This same‐sex parent–child link is no longer at play for teenagers living in single‐mother households, for whom the influence of their only cohabiting parent turns out to be predominant independently of gender. 相似文献
58.
Daniela Federici Giancarlo Gandolfo 《The journal of international trade & economic development》2013,22(2):111-142
Chaotic exchange rate models are structural models built in discrete time (difference equations), and show that with orthodox assumptions (PPP, interest parity, etc) and introducing plausible nonlinearities in the dynamic equations, it is possible to obtain a model capable of giving rise to chaotic motion. However, none of these models is estimated, and the conclusions are based on simulations: the empirical validity of these models is not tested. In this paper, a continuous time (the exchange rate is obviously a continuous variable) exchange rate model is built as a non-linear set of three differential equations and its theoretical properties (steady state, stability, etc,) analysed. The model is then econometrically estimated in continuous time with Italian data and examined for the possible presence of chaotic motion. This paper also shows that the continuous time estimation of economic models built as systems of nonlinear differential equations is a very powerful tool in the hands of the profession. 相似文献
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