147 research outputs found
Existence of integro-differential solutions for a class of abstract partial impulsive differential equations
Existence results for third-order impulsive neutral differential equations with deviating arguments
Projecting the Medium-Term: Outcomes and Errors for GDP Growth
The focus of this paper is the evaluation of a very popular method for potential output estimation and medium-term forecasting - the production function approach - in terms of predictive performance. For this purpose, a forecast evaluation for the three to five years ahead predictions of GDP growth for the individual G7 countries is conducted. To carry out the forecast performance check a particular testing framework is derived that allows the computation of robust test statistics given the specific nature of the generated out-of sample forecasts. In addition, medium-term GDP projections from national and international institutions are examined and it is assessed whether these projections convey a reliable view about future economic developments and whether there is scope for improving their predictive content
Home range and movement patterns in a vulnerable polecat **Mustela putorius** population
Premi\ue8res donn\ue9es sur la r\ue9partition et le statut des must\ue9lides en g\ue9n\ue9ral et du putois (**Mustela putorius** L.), en particulier au Grand-Duch\ue9 de Luxembourg
Feeding habits and trophic niche overlap of two sympatric Mustelidae, the polecat **Mustela putorius** and the beech marten **Martes foina**
- …