Results 71 to 80 of about 2,966 (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
wiley +1 more source
Flexible methods for species distribution modeling with small samples
Ecography, Volume 2026, Issue 2, February 2026.Species distribution models (SDMs) predict where species live or could potentially live and are a key resource for ecological research and conservation decision‐making. However, current SDM methods often perform poorly for rare or inadequately sampled species, which include most species on earth, as well as most of those of the greatest conservation ...
Brian S. Maitner +4 more
wiley +1 more source
Modeling International Financial Returns with a Multivariate Regime Switching Copula [PDF]
In order to capture observed asymmetric dependence in international financial returns, we construct a multivariate regime-switching model of copulas. We model dependence with one Gaussian and one canonical vine copula regime.
Chollete, Lorán +2 more
core +3 more sources
An overview of the goodness-of-fit test problem for copulas
, 2012 We review the main "omnibus procedures" for goodness-of-fit testing for copulas: tests based on the empirical copula process, on probability integral transformations, on Kendall's dependence function, etc, and some corresponding reductions of dimension ...
Fermanian, Jean-David
core +1 more source
Environmetrics, Volume 37, Issue 1, January 2026.ABSTRACT Compound events (CEs), commonly defined as the “combination of multiple drivers and/or hazards that contributes to societal or environmental risk”, often result in amplified impacts compared to individual hazards. In order to estimate the return period of bivariate CEs, a novel nonparametric approach employing bivariate Generalized Pareto ...
Grégoire Jacquemin +3 more
wiley +1 more source
Nonparametric estimation of simplified vine copula models: comparison of methods
Dependence Modeling, 2017 In the last decade, simplified vine copula models have been an active area of research. They build a high dimensional probability density from the product of marginals densities and bivariate copula densities.
Nagler Thomas +2 more
doaj +1 more source
Global Challenges, Volume 10, Issue 1, January 2026.This study presents a geographic information system‐based, participatory methodology to identify high‐potential zones for agricultural waste valorization in rural Mozambique. By integrating spatial data with local knowledge, it reveals opportunities for bioenergy production and sustainable water use. The findings support circular development strategies,
Giuseppe Mancuso +4 more
wiley +1 more source
In this paper, we present a new methodology based on vine copulas to estimate multivariate distributions in high dimensions, taking advantage of the diversity of vine copulas.
Dominique Guegan, Pierre-André Maugis
core
Univariate conditioning of vine copulas
Journal of Multivariate Analysis, 2015 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +1 more source
Operational Convection‐Permitting COSMO/ICON Ensemble Predictions at Observation Sites (CIENS)
Geoscience Data Journal, Volume 13, Issue 1, January 2026.Map of synoptic stations in Germany for which ensemble forecasts and observations are provided in the CIENS dataset. Colours represent the station altitude in metres. ABSTRACT We present the CIENS dataset, which contains ensemble weather forecasts from the operational convection‐permitting numerical weather prediction model of the German Weather ...
Sebastian Lerch +6 more
wiley +1 more source