Risk management has become a central issue in sanitary crises. Agro food firms have devised organizational responses to sanitary risks, usually implying better traceability. European Regulation 178/2002 established mandatory traceability. This paper provides a critical appraisal of the European...

We propose several connectedness measures built from pieces of variance decompositions, and we argue that they provide natural and insightful measures of connectedness. We also show that variance decompositions define weighted, directed networks, so that our connectedness measures are intimately...

Risk management has become a central issue in sanitary crises. Agro food firms have devised organizational responses to sanitary risks, usually implying better traceability. European Regulation 178/2002 established mandatory traceability. This paper provides a critical appraisal of the European...

We take a simple time-series approach to modeling and forecasting daily average temperature in U.S. cities, and we inquire systematically as to whether it may prove useful from the vantage point of participants in the weather derivatives market. The answer is, perhaps surprisingly, yes....