Discrete-continuous models have become a common technique for addressing selectivity biases in data sets with endogenously partitioned observational units. Alternative two-stage approaches have been suggested by LEE (1983), DUBIN and MCFADDEN (1984), and DAHL (2002), all of which capture the...

Interaction effects capture the impact of one explanatory variable x1 on the marginal effect of another explanatory variable x2. To explore interaction effects, so-called interaction terms x1x2 are typically included in estimation specifications. While in linear models the effect of a marginal...

Sample selection models, variants of which are the Heckman and Heckit models, are increasingly used by political scientists to accommodate data in which censoring of the dependent variable raises concerns of sample selectivity bias. Beyond demonstrating several pitfalls in the calculation of...

Using household travel diary data collected in Germany between 1997 and 2012, we employ an instrumental variable (IV) approach to estimate fuel price and efficiency elasticities. The aim is to gauge the relative impacts of fuel economy standards and fuel taxes on distance traveled. We fi nd that...

This note attempts to reconcile a range of primary methods for dealing with price asymmetry, such as the approaches proposed by Tweeten and Quance (1969), Wolffram (1971) and Houk(1977). Using Wolffram's stylized example, we first illustrate that the notion of asymmetry can be captured in a...

Drawing on German household data from 1992 to 2011, this paper analyzes how couples allocate housework against the backdrop of three questions: (1) Does an individual's contribution to household income - both in absolute and relative terms - influence his or her contribution to housework? (2) If...

In den vergangenen Jahren erlebte Deutschland einen Solarboom. Stark fallende Preise für Solarmodule sowie die hohen Einspeisevergütungen führten dazu, dass die Photovoltaik (PV) massiv ausgebaut wurde. Dies ist entgegen erster Intuition keine gute, sondern eine gefährliche Entwicklung: In...

The overestimation of willingness-to-pay (WTP) in hypothetical responses is a wellknown finding in the literature. Various techniques have been proposed to remove or, at least, reduce this bias. Using responses from a panel of about 6,500 German households on their WTP for a variety of power...

Die Überschätzung der Zahlungsbereitschaft in rein hypothetischen Entscheidungssituationen ist ein in der Literatur wohlbekanntes Phänomen. Zur Eliminierung dieser Verzerrung wurden verschiedene Methoden vorgeschlagen, unter anderem der sogenannte Cheap-Talk-Ansatz und das...

Drawing on German household data from 1992 to 2011, this paper analyzes how couples allocate housework against the backdrop of three questions: (1) Does an individual's contribution to household income - both in absolute and relative terms - influence his or her contribution to housework? (2) If...