Results 81 to 90 of about 41,008 (203)
Market Insurance and Risk Pooling in U.S. Crop Insurance
Agricultural Economics, Volume 57, Issue 2, March 2026.ABSTRACT A common assumption is that multiple‐peril crop insurance markets suffer from market failures, thus justifying government intervention in the form of premium subsidies, operating allowances, and reinsurance agreements. One prominent rationale for intervention involves geographic correlation in agricultural production which leads to systemic ...
Fan Fan +3 more
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A Scale‐Invariant Learning Model for Distributed Practice Effects
Cognitive Science, Volume 50, Issue 3, March 2026.Abstract Despite their potential to significantly improve the durability of learning and their proven predictive power on many occasions, theories of distributed practice have not yet been widely adopted by educators. The reluctance may be attributed to the enormous strain they impose on learners or the fragmented nature of the evidence, as well as the
Martin Riopel, Patrice Potvin
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Hybrid Clayton-Frank Convolution-Based Bivariate Archimedean Copula
Journal of Probability and Statistics, 2018 This study exploits the closure property of the converse convolution operator to come up with a hybrid Clayton-Frank Archimedean copula for two random variables.
Maxwell Akwasi Boateng +3 more
doaj +1 more source
Hierarchical Archimedean Copulae: The HAC Package [PDF]
Journal of Statistical Software, 2014 This paper presents the R package HAC, which provides user friendly methods for dealing with hierarchical Archimedean copulae (HAC). Computationally efficient estimation procedures allow to recover the structure and the parameters of HAC from data. In addition, arbitrary HAC can be constructed to sample random vectors and to compute the values of the ...
Ostap Okhrin, Alexander Ristig
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McDowell and Sellars on Objective Purport
European Journal of Philosophy, Volume 34, Issue 1, Page 313-332, March 2026.Abstract John McDowell has criticized Wilfrid Sellars on several occasions and over a number of years for his ‘non‐relational’ account of intentionality. This account is, according to McDowell, at least partly responsible for a ‘blind spot’ in Sellars's thinking: Sellars, allegedly, fails to see how objects or states of affairs in the external world ...
Stefan Brandt
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River, Volume 5, Issue 1, Page 33-54, February 2026.Study of meteorological‐hydrological drought propagation under reservoir regulation using a Copula‐Bayesian network in the Hanjiang River Basin. Abstract Reservoir operations play a pivotal role in modifying drought propagation processes, particularly by influencing the transition from meteorological to hydrological drought. This study investigates the
Yanping Qu +5 more
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IET Energy Systems Integration, Volume 8, Issue 1, January/December 2026.ABSTRACT Distributed photovoltaic (DPV) power forecasting is essential for grid stability but remains challenging due to strong intermittency and meteorological uncertainty. Existing data‐driven models often lack physical interpretability and struggle to capture asymmetric dependence structures, leading to unreliable predictions during extreme weather.
Lili Zheng +6 more
wiley +1 more source
International Transactions on Electrical Energy Systems, Volume 2026, Issue 1, 2026.In order to accurately evaluate and tap the mutual‐aid capacity potential of interconnected power stations under the scenario of peak‐to‐peak compensation between new energy output and load demand, this paper uses Copula function to describe the correlation structure of wind, light, and load from the perspective of source–load matching, quantify the ...
Chao Ding +6 more
wiley +1 more source
WORLD FINANCIAL RELATIONS: UNDERSTANDING THE CREDIT DERIVATIVE SWAPS (CDS) DEPENDENCE STRUCTURE
REAdThis study investigates the copula model that best fit to model the dependence structure of Credit Derivative Swaps (CDS) spreads. For the analysis, we consider daily data from the period of January 1, 2009 to December 31, 2014.
Fernanda Maria Müller +2 more
doaj +1 more source
Spline approximations to conditional Archimedean copula [PDF]
Stat, 2014 We propose a flexible copula model to describe changes with a covariate in the dependence structure of (conditionally exchangeable) random variables. The starting point is a spline approximation to the generator of an Archimedean copula. Changes in the dependence structure with a covariate x are modelled by flexible regression of the spline ...
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