In this paper we investigate global optimization for black-box simulations using metamodels to guide this optimization. As a novel metamodel we introduce intrinsic Kriging, for either deterministic or random simulation. For deterministic simulation we study the famous `efficient global...

Abstract: To analyze the input/output behavior of simulation models with multiple responses, we may apply either univariate or multivariate Kriging (Gaussian Process) models. Univariate Kriging may use a popular MATLAB Kriging toolbox called \DACE'. Multivariate Kriging faces a major problem:...

Abstract: Distribution-free bootstrapping of the replicated responses of a given discreteevent simulation model gives bootstrapped Kriging (Gaussian process) metamodels; we require these metamodels to be either convex or monotonic. To illustrate monotonic Kriging, we use an M/M/1 queueing...

We derive intrinsic Kriging, using Matherons intrinsic random functions which eliminate the trend in classic Kriging. We formulate this intrinsic Kriging as a metamodel in deterministic and random simulation models. For random simulation we derive an experimental design that also specifies the...

Deteriorating public finances around the world raise doubts about countries’ abilities to bail out their largest banks. For an international sample of banks, this paper investigates the impact of government indebtedness and deficits on bank stock prices and CDS spreads. Overall, bank stock...

Abstract: This paper documents large cross-country variation in the relationship between bank competition and bank stability and explores market, regulatory and institutional features that can explain this variation. We show that an increase in competition will have a larger impact on banks’...

On May 9, 2010 euro zone countries announced the creation of the European Financial Stability Facility as a response to the sovereign debt crisis. This paper investigates the impact of this announcement on bank share prices, bank CDS spreads and sovereign CDS spreads. The main private...

We examine how relational contracting in credit and investment relationships is affected by the potential expropriation of funds. We implement credit relationships in which repayment is not third-party enforceable, i.e. borrowers can default on their loans. In our main treatment the borrower can...

Abstract: Corporate income taxation, by affecting the after-tax cost of funding, has implications for a bank's incentive to securitize. Using a sample of OECD banks over the period 1999-2006, we fi nd that corporate income taxation led to more securitization at banks that are constrained in...