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81.
This article documents the conditional and unconditional distributions of the realized volatility for the 2008 futures contract
in the European climate exchange (ECX), which is valid under the EU emissions trading scheme (EU ETS). Realized volatility
measures from naive, kernel-based and subsampling estimators are used to obtain inferences about the distributional and dynamic
properties of the ECX emissions futures volatility. The distribution of the daily realized volatility in logarithmic form
is shown to be close to normal. The mixture-of-normals hypothesis is strongly rejected, as the returns standardized using
daily measures of volatility clearly departs from normality. A simplified HAR-RV model (Corsi in J Financ Econ 7:174–196, 2009)
with only a weekly component, which reproduces long memory properties of the series, is then used to model the volatility
dynamics. Finally, the predictive accuracy of the HAR-RV model is tested against GARCH specifications using one-step-ahead
forecasts, which confirms the HAR-RV superior ability. 相似文献
82.
Richard Germain Beth Davis‐Sramek Subhash C. Lonial P. S. Raju 《Journal of Business Logistics》2011,32(3):240-253
In the hospital context, when responsiveness is high, relational exchange with suppliers associates with better financial performance. But when a hospital’s responsiveness is low, relational exchange has no effect on performance—the hospital’s inability to adopt “things that are new” and extirpate “things that are old” eclipses the potential financial benefits of long‐term, relational exchange with suppliers. Furthermore, the quality orientation of the hospital and supplier uncertainty associate with relational supplier exchange—these effects are not moderated by hospital responsiveness. The net effect is that a quality orientation in a hospital impacts financial performance only when hospital responsiveness is high. 相似文献
83.
Julien Prat 《Journal of Applied Econometrics》2010,25(6):929-962
We construct and estimate by maximum likelihood a job search model where wages are set by Nash bargaining and idiosyncratic productivity follows a geometric Brownian motion. The proposed framework enables us to endogenize job destruction and to estimate the rate of learning‐by‐doing. Although the range of the observations is not independent of the parameters, we establish that the estimators satisfy asymptotic normality. The structural model is estimated using Current Population Survey data on accepted wages and employment durations. We show that it accurately captures the joint distribution of wages and job spells. We find that the rate of learning‐by‐doing has an important positive effect on aggregate output and a small impact on employment. Copyright © 2009 John Wiley & Sons, Ltd. 相似文献
84.
Julien Trufin Hansjoerg Albrecher Michel M Denuit 《The GENEVA Risk and Insurance Review》2011,36(2):174-188
This paper studies a risk measure inherited from ruin theory and investigates some of its properties. Specifically, we consider a value-at-risk (VaR)-type risk measure defined as the smallest initial capital needed to ensure that the ultimate ruin probability is less than a given level. This VaR-type risk measure turns out to be equivalent to the VaR of the maximal deficit of the ruin process in infinite time. A related Tail-VaR-type risk measure is also discussed. 相似文献
85.
Journal of Regulatory Economics - The deployment of decentralized productions units (DPU) like rooftop solar panels is a major challenge for a transition towards greener energy sources. Under a net... 相似文献
86.
We analyze monetary exchange in a model that allows for directed search and multilateral matches. We consider environments with divisible goods and indivisible money, and compare the results with those in models that use random matching and bilateral bargaining. Two different pricing mechanisms are used: ex ante price posting, and ex post bidding (auctions). Also, we consider settings both with and without lotteries. We find that the model generates very simple and intuitive equilibrium allocations that are similar to those with random matching and bargaining, but with different comparative static and welfare properties. 相似文献
87.
Julien Cadot 《The Australian journal of agricultural and resource economics》2013,57(3):344-358
The present study aims to learn how collateral affects firm performance in the case of newly established wine producers. The issue is to identify the effects of collateral in situations of asymmetric information when the bank is the main financial partner of the entrepreneurs involved. On one hand, the use of collateral may reduce the risk of overinvestment by entrepreneurs and thereby reduce the risk of repayment default. On the other hand, collateral may induce bad performance linked to a reduced monitoring of the investments by the bank. We herein test both hypotheses in two different cases: when the bank monitors the investments and when the bank does not. 相似文献
88.
Julien Martin 《European Economic Review》2012,56(4):777-791
This paper provides new evidence on trade prices based on firm-level data from France. It shows that firms charge higher free-on-board (net of transportation costs, hereafter noted as fob) unit values on exports to more distant countries. This finding holds within firms and products, and across destinations. The price premium paid by distant consumers is due to firms charging higher fob prices, and to higher transportation costs. A simple decomposition of the elasticity of import prices to distance shows that, after a fall in transport costs, almost 80% of the decline in import prices enjoyed by consumers is due to firms charging lower fob prices. This suggests a new channel through which changes in transport costs may affect welfare. 相似文献
89.
In this paper, we consider a hierarchical oligopoly model, in which firms compete on quantities of an homogeneous product. We provide a proof and an interpretation that under the three necessary and sufficient conditions of linear aggregate demand, constant and identical marginal costs, the strategy of leaders at any stage depends neither on the number of leaders who play after nor on the number of remaining stages. So, all firms behave as Cournotian oligopolists on the residual demand. We show that these three assumptions are not only sufficient but also necessary. Any departure from any of these assumptions rules out this property. 相似文献
90.
Patrick Fève Julien Matheron Jean‐Guillaume Sahuc 《Oxford bulletin of economics and statistics》2009,71(6):883-894
The aim of this paper is to complement the minimum distance estimation–structural vector autoregression approach when the weighting matrix is not optimal. In empirical studies, this choice is motivated by stochastic singularity or collinearity problems associated with the covariance matrix of impulse response functions. Consequently, the asymptotic distribution cannot be used to test the economic model's fit. To circumvent this difficulty, we propose a simple simulation method to construct critical values for the test statistics. An empirical application with US data illustrates the proposed method. 相似文献