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91.
92.
Akira Yakita 《Journal of public economics》2008,92(3-4):897-914
Under the golden rule of public finance for public investment with a constant budget deficit/GDP ratio, we show that for the sustainability of government budget deficits there is a threshold of the initial public debt for a given stock of public capital, and that this threshold level of public debt is increasing in the stock of public capital. If the initial public debt is greater than the threshold, the government can no longer sustain budget deficits, while if it is smaller, the government can conduct a permanent deficit policy, which eventually leads to a positive public debt/GDP ratio. 相似文献
93.
Akira Yamazaki 《Quantitative Finance》2020,20(5):745-767
This paper suggests incorporating investor probability weighting and the default risk of individual firms into a consumption-based asset pricing model. The extended model provides a unified explanation for several anomalous patterns observed in financial markets. The analysis addresses not only widely recognized asset pricing puzzles, such as the equity premium puzzle, but also less-studied anomalies on financially distressed stocks. The simulation, under which the model is calibrated according to U.S. historical data, shows that a combination of mild overweighting of probability on tail events and nonlinearity of equity values caused by default risk has the potential to resolve these patterns. 相似文献
94.
We study the effect of collateralized lending and securitization on international capital flows and welfare in a two-country general equilibrium model with idiosyncratic investment risk. The low-margin country (Home) endogenously supplies more safe assets and enables more risk sharing. Upon financial integration, capital flows from Foreign (high-margin country) to Home, leading to lower interest rates and a larger global supply of safe assets. Unlike in standard models with partial equity issuance, in our model, Home can lose from financial integration due to the endogenous reduction in risk sharing and aggregate shocks can generate large gross capital flows. 相似文献
95.
The Oil Spill Monitor (OSM) is an innovative public sector accounting system intended to improve the regulation of oil pollution in the Niger Delta through greater transparency and stakeholders’ engagement. The Nigerian OSM, an online accounting and geographic information system, was set up by non-governmental organizations before becoming part of the regulator’s accountability system. Problems with data quality, regulatory enforcement and remediating practices meant that improved accountability and stakeholder engagement were necessary but not sufficient in this case. 相似文献
96.
The purpose of this research is to provide a valuation formula for commodity spread options. Commodity spread options are
options written on the difference of the prices (spread) of two commodities. From the aspect of commodity contingent claims,
it is considered that commodity spread options are difficult to evaluate with accuracy because of the existence of the convenience
yield. Hence, the model of the convenience yield is the key factor to price commodity spread options. We use the concept of
future convenience yields to develop the model that enriches the stochastic behavior of convenience yield. We also introduce
Heath-Jarrow-Morton interest rate model to the valuation framework. This general model not only captures the mean reverting
feature of the convenience yield, but also allows us to handle a very wide range of shape that the term structure of convenience
yield can take. Therefore our model provides various types of models. The numerical analysis presented in this paper provides
some unique features of commodity spread options in contrast to normal options. These characteristics have never been addressed
in previous studies. Moreover, it suggests that the existing model overprice commodity spread options through neglecting the
effect of interest rates. 相似文献
97.
Akira Yamazaki 《Journal of Mathematical Economics》1984,13(2):105-121
We attempt to determine the probability of a blocking coalition from a notion of being non- Walrasian which does not rely on the explicit use of norms. The key concept introduced is that of Walras degrees. Theorem 1 gives the bounds of the probability of blocking in terms of these degrees. Theorem 2 gives the asymptotic conditional probability of a blocking coalition given that coalitions are losing. The relationship between the degrees of the conventional norms on allocations is also investigated. 相似文献
98.
In this paper we investigate the question of how many coalitions of a given relative size would block a non-Warlasian allocation in large finite economies. It is shown that in finite economies, if a Pareto optimal allocation is bounded away from being Walrasian, then, for any two numbers α and β between 0 and 1, the proportion of blocking coalitions in the set of all coalitions with relative size between α and β, is arbitrarily close to 1/2, as the number of individuals in the economy becomes large. 相似文献
99.
The standard generalized method of moments (GMM) estimation of Euler equations in heterogeneous‐agent consumption‐based asset pricing models is inconsistent under fat tails because the GMM criterion is asymptotically random. To illustrate this, we generate asset returns and consumption data from an incomplete‐market dynamic general equilibrium model that is analytically solvable and exhibits power laws in consumption. Monte Carlo experiments suggest that the standard GMM estimation is inconsistent and susceptible to Type II errors (incorrect nonrejection of false models). Estimating an overidentified model by dividing agents into age cohorts appears to mitigate Type I and II errors. 相似文献
100.
This paper presents an examination of the sustainability of national debt and economic growth, and the growth effects of government debt and income taxation. Results show sustainability of national debt and economic growth under the primary surplus rule. Fiscal policy and balanced growth are compatibly sustainable if and only if the government sets a long‐run target debt/GDP (gross domestic product) ratio within a reasonable range. Results also show that a rise in the long‐run debt/GDP ratio reduces the balanced growth rate. Based on these two results, the long‐run debt/GDP ratio is greater than zero if the government aims to maximize the balanced growth rate. 相似文献