The paper suggests and studies count data models corresponding to previously studied spatial econometric models for continuous variables. A novel way of incorporating spatial weights is considered for both time and space dynamic models with or without simultaneity. The paper also contains a brief discussion about estimation issues.

Structural models are models for empirical work that have parameters stable to changes in the economic environment. In structural econometric models, economic theory is used to develop mathematical statements about how a set of observable “endogenous” variables are related to another set of observable “exogenous” variables. Examples for structural modeling include demand analysis, schooling cho...

This chapter explains the logic of structural econometric models and compares them to other types of econometric models. We provide a framework researchers can use to develop and evaluate structural econometric models. This framework pays particular attention to describing different sources of unobservables in structural models. We use our framework to evaluate several literatures in industrial...

The m-testing approach provides a general and convenient framework in which to view and construct speci cation tests for econometric models. Previous m-testing frameworks only consider test statistics that involve nite dimensional parameter estimators and in nite dimensional parameter estimators a ecting the limit distribution of the m-test statistics. In this paper we propose a new m-testing f...

Macroeconomic forecasts are often based on the interaction between econometric models and experts. A forecast that is based only on an econometric model is replicable and may be unbiased, whereas a forecast that is not based only on an econometric model, but also incorporates an expert's touch, is non-replicable and is typically biased. In this paper we propose a methodology to analyze the qual...

A bank′s capital charge computation is a widely discussed topic with new approaches emerging continuously. Each bank is computing this figure using internal methodologies in order to reflect its capital adequacy; however, a more homogeneous model is recommended by the Basel committee to enable judging the situation of these financial institutions and comparing different banks among each other. ...

This article examines the role of marketing in the context of initial public offerings (IPOs), a neglected issue in the extant literature. The results from a large-scale, cross-industry study indicate that firms’ pre-IPO marketing spendings help reduce IPO underpricing and boost IPO trading in the stock market. The econometric models also suggest that these effects are heterogeneous; that is, t...

We develop general econometric models of ascending (English) auctions which allow for both bidder asymmetries as well as common and/or private value components in bidders' underlying valuations. We show that the equilibrium inverse bid functions in each round of the auction are implicitly deened (pointwise) by a system of nonlinear equations, so that conditions for the existence and uniqueness ...

While there is a large literature on the economic theory of international standards, and their presumed effects, we know much less about how international standards work in practice. This paper reviews the body of empirical work that has investigated the specific question: How international standards impact on international trade? Do they help or hinder trade? The work reviewed ranges from econ...

Most existing econometric models such as ARCH(q) and GARCH(p,q) take into account heteroskedasticity (non-stationarity) of time series. However, the original ARCH(q) and GARCH(p,q) models do not take into account the asymmetry of the market’s response to positive and to negative changes. Several heuristic modifications of ARCH(q) and GARCH(p,q) models have been proposed that take this asymmetry...