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Measurement error, biases, and the validation of complex models

Carroll, Raymond J.; Galindo, Christian D. - 1997

There are three major points to this article: 1. Measurement error causes biases in regression fits. The line one would … exposure with error. 2. The effects of measurement error vary from study-to-study. It is dangerous to take measurement error … corrections derived from one study and apply them to data from entirely different studies or populations. 3. Measurement error can …

Persistent link: https://www.econbiz.de/10009631751

Temporal aggregation and causality in multiple time series models

Breitung, Jörg; Swanson, Norman R. - 1998

asymptotic theory based on large aggregation intervals we derive conditions for a correspondence between both concepts. These …

Persistent link: https://www.econbiz.de/10009578029

On the effects of aggregating cointegrated variables over time

Müller-Kademann, Christian - 2002

It has long been recognized that aggregating time series introduces correlation between consecutive values of the aggregated observations (see Working (1960)). This paper investigates the effect of aggregation on the relation between variables assuming that the data generating process involves...

Persistent link: https://www.econbiz.de/10009620772

A state space model for Berlin house prices

Schulz, Rainer; Werwatz, Axel - 2001

How risky are investments in residential real estate? To answer this question, information is needed about the behavior of house prices. The hedonic methodology has become a standard approach for modelling the prices of heterogeneous assets. Although intuitively appealing, it is often criticized...

Persistent link: https://www.econbiz.de/10009614878

Errors in variables models

Liang, Hua - 1999

Persistent link: https://www.econbiz.de/10009581095

Cai, Zongwu (contributor) - 2003 - [Elektronische Ressource]

Persistent link: https://www.econbiz.de/10001919034

Convex measures of risk and trading constraints

Föllmer, Hans; Schied, Alexander - 2001

We introduce the notion of a convex measure of risk, an extension of the concept of a coherent risk measure defined in Artzner et aL (1999), and we prove a corresponding extension of the representation theorem in terms of probability measures on the underlying space of scenarios. As a case...

Persistent link: https://www.econbiz.de/10009615426

Coherent risk measures, valuation bounds, and (my,p)-portfolio optimization

Jaschke, Stefan R.; Küchler, Uwe - 1999

This paper presents a general theory that works out the relation between coherent risk measures, valuation bounds, and … theory presented seems to fill a gap between arbitrage valuation on the one hand and single agent utility maximization or … full-fledged equilibrium theory on the other hand. "Coherent" valuation bounds strike a balance in that the bounds can be …

Persistent link: https://www.econbiz.de/10009581108

Distribution-invariant dynamic risk measures

Weber, Stefan (contributor) - 2003 - [Elektronische Ressource], rev

Persistent link: https://www.econbiz.de/10001917139

Error reduction in density estimation under shape restrictions

Rychlik, Tomasz - 1999

For the problems of nonparametric estimation of nonincreasing and symmetric unimodal density functions with bounded supports we determine the projections of estimates onto the convex families of possible parent densities with respect to the weighted integrated squared error. We also describe the...

Persistent link: https://www.econbiz.de/10009579180

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