Stochastic frontier models are widely used to measure, e.g., technical efficiencies of firms. The classical stochastic frontier model often suffers from the empirical artefact that the residuals of the production function may have a positive skewness, whereas a negative one is expected under the...

In the context of current economic and financial crisis a comparative analysis of the main indices of economic and social performance of the EU member states is necessary. In such line of argument, the authors propose, as novelty, an economic power-economic performance matrix as a methodological...

Peer effects in education production functions are predominantly employed as the mean classroom performance. Based on sociological theory and using spatial regression techniques, I introduce social network matrices that correspond to a weighting scheme for peers within the class. In a spatial...

We propose a simple modification of the time series filter by Hamilton (2018b) that yields reliable and economically meaningful real-time output gap estimates. The original filter relies on 8-quarter ahead forecasts errors of an autoregression. While this approach yields a cyclical component of...

Statistical Analysis in surveys is often facing missing data. As case-wise deletion and single imputation prove to have undesired properties, multiple imputation remains as a measure to handle this problem. In a longitudinal study, where for some missing values past or future data points might...

This study analyses the effect of an increase in college costs on student achievement, particularly time-to-degree and performance. I exploit a unique policy at a Swiss university to identify and estimate the causal effect of an increase in tuition. Students faced an unexpected raise in tuition....

This study investigates the development of firms after high-growth. We argue that the formula used for measuring growth determines results. Implications from different formulas are tested with data from Amadeus on Bulgarian firms for the years 2001-2010. We provide first evidence for an absolute...

With an increased use of modern ICT methodologies in teaching econometrics, additional research is needed to evaluate their effects on students' learning of econometrics. The purpose of this paper is to empirically investigate how the Internet-based computer laboratory at Ss. Cyril and Methodius...

This paper presents the results of a randomized study of a home visiting program implemented in Germany for first-time mothers on welfare. A major goal of the program is to increase the participants economic self-sufficiency. I use administrative data from the Federal Employment Agency and...

Obesity may not only be linked to undesirable health outcomes but also to limitations in sexual life. The present paper aims to assess whether there is a relationship between weight change and sexual activity in obese individuals. To address the endogeneity of weight loss that is likely to...