We derive an admissible parameter space for vector Multiplicative Error Models (vMEMs), explicitly formulating it in terms of the model's matrix parameters through a set of matrix inequalities. Another key contribution is the adoption of constrained maximum likelihood estimation for the...

This paper evaluates an Adaptive LASSO-MGARCH model for multivariate volatility forecasting, with an application to green and conventional bonds, equities, energy commodities, and EU carbon allowances. By introducing coefficient-specific adaptive penalisation directly into the multivariate GARCH...

This study examines how soft skills education performatively shapes business realities across cultural boundaries. While prior research has treated soft skills as static capabilities, we demonstrate their role as performative forces actively reshaping organizational practices. Through in-depth...

This paper evaluates an Adaptive LASSO-MGARCH model for multivariate volatility forecasting, with an application to green and conventional bonds, equities, energy commodities, and EU carbon allowances. By introducing coefficient-specific adaptive penalisation directly into the multivariate GARCH...

We derive an admissible parameter space for vector Multiplicative Error Models (vMEMs), explicitly formulating it in terms of the model's matrix parameters through a set of matrix inequalities. Another key contribution is the adoption of constrained maximum likelihood estimation for the...

We develop a general equilibrium framework in which a commercial banker, constrained by capital adequacy requirements, creates a special purpose vehicle (SPV) to hold securitized assets off its balance sheet. By operating the bank and SPV as separate entities, the banker circumvents regulation,...

This study examines how soft skills education performatively shapes business realities across cultural boundaries. While prior research has treated soft skills as static capabilities, we demonstrate their role as performative forces actively reshaping organizational practices. Through in-depth...

We study a dynamic model of a non-life insurance portfolio. The foundation of the model is a compound Poisson process that represents the claims side of the insurer. To introduce clusters of claims appearing, e.g. with catastrophic events, this process is time-changed by a Lévy subordinator....