Als Teil des operationellen Risikos stellt das Modellrisiko eine wichtige Komponente f¨urdie Risikoermittlung bei Finanzinstitutionen dar. Da letztere z.B. bei der Tarifierung undBepreisung von Derivaten bzw. Portfolien oder bei der Markt- und Kreditrisikoberechnungauf stochastische Modelle...

This paper proposes a model of urban agglomeration in conjunction withimperfect competition and endogenous product R&D of firms. The qualityof differentiated manufacturing goods is a result of R&D services providedby research firms. Sectoral interactions are subject to spatially...

This paper gives an overview of different methodologies related to value chain analysis in thecontext of environment and trade research. Four major fields of methodologies are identified:Accounting of input-output flows, general equilibrium models, econometrics, and globalcommodity chain...

We develop a Wald type test to distinguish between long memory and ESTARnonlinearity by using a directed-Wald statistic to overcome the problem of restricted parametersunder the alternative. The test is derived from two basic model specificationswhere the first is the standard model based on an...

This paper introduces wealth-dependent time preference into a simplemodel of endogenous growth. The model generates adjustment dynamics in linewith the historical facts on savings and economic growth in Europe from the HighMiddle Ages to today. Along a virtuous cycle of development more wealth...

Credit risk is an important issue in many nance areas, such as the determinationof cost of capital, the valuation of corporate bonds and pricing of credit derivatives.Credit risk has also been a cause and consequence of the current nancial crisis.Thus, methods for measuring credit risk, default...

Model risk as part of the operational risk is a serious problem for financial institutions.As the pricing of derivatives as well as the computation of the marketor credit risk of an institution depend on statistical models the application of awrong model can lead to a serious over- or...

Sportwetten werden in Deutschland in der Marktordnung eines Veranstaltungsmonopolsder öffentlichen Hand vergleichbar den Lotterien reguliert. Das Monopol wurde vom Bundesverfassungsgerichtim März 2006 in der bisherigen Form als rechtlich unzulässiges Fiskalmonopol verworfen. Demnach ist...

This paper examines employer-to-employer mobility by describing theindividual wage trajectories along the working career. The model, whichis designed to introduce optimal between-firm mobility, is based on thesearch, the matching, and the human capital theory. It is emphasizedthat hopping from...

This paper presents a new algorithm for the dynamic Multi-Level Ca-pacitated Lot Sizing Problem with Setup Carry-Overs (MLCLSP-L). TheMLCLSP-L is a big-bucket model that allows the production of any num-ber of products within a period, but it incorporates partial sequencing of theproduction...