There exists significant hype regarding how much machine learning and incorporating social media data can improve forecast accuracy in commercial applications. To assess if the hype is warranted, we use data from the film industry in simulation experiments that contrast econometric approaches...

In the presented study the new variance-free test for heteroscedastic normality is suggested and its power reported. The test is illustrated on the example of the empirically observed financial return time series. The results of the testing are consistent with the key theoretical concepts that...

Given a countable structure , we define the degree spectrum of to be the set of all enumeration degrees generated by the presentations of on the natural numbers. The co-spectrum of is the set of all lower bounds of . We prove some general properties of the degree spectra which show that they...

When combined with the logical notion of partially interpreted functions, many nonparametric results in econometrics and statistics can be understood as statements about semi-algebraic sets. Tarski's quantifier elimination (QE) theorem therefore guarantees that a universal algorithm exists for...

We provide various norm-based definitions of different types of cross-sectional dependence and the relations between them. These definitions facilitate to comprehend and to characterize the various forms of cross-sectional dependence, such as strong, semi-strong, and weak dependence. Then we...

Ratios of parameter estimates are often used in econometric applications. However, the test of these ratios when estimated can cause difficulties since the ratio of asymptotically normally distributed random variables have a Cauchy distribution for which there are no finite moments. This paper...

I discuss the econometrics and the economics of past research on the effects of minimum wages on employment in the United States. My intent is to try to identify key questions raised in the recent literature, and some from the earlier literature, which I think hold the most promise for...

This survey is written to show historians of economics what is happening in history of econometrics, and is the second survey I did with this aim. The first survey, published in 2011, concluded that interest in the history of econometrics has arisen primarily from within econometrics itself and...

Pawel Ciompa's conception of econometrics is compared with the modern mainstream interpretation of the term that originated with Ragnar Frisch and other members of the Econometric Society. Ciompa was the first to use the German language term “Oekonometrie” in 1910, sixteen years prior to...

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...