Empirical studies on software prediction models do not converge with respect to the question "which prediction model is best?" The reason for this lack of convergence is poorly understood. In this simulation study, we have examined a frequently used research procedure comprising three main...

While a number of algorithms for multiobjective reinforcement learning have been proposed, and a small number of applications developed, there has been very little rigorous empirical evaluation of the performance and limitations of these algorithms. This paper proposes standard methods for such...

H. Gregg Lewis did fundamental research outlining the economic effects of trade unions and considering how to measure them carefully. He also laid out the theory of the supply and demand for labor in careful detail that has underlain economists' thinking about these outcomes. Aside from...

In this paper we perform a meta-analysis of empirical money demand studies involving almost 500 individual money demand estimations. We analyze whether the wide variety of results can be explained by characteristics of the studies, different macroeconomic environments or the imprecision of...

By analyzing almost 1000 money demand estimations this paper attempts to summarize the disperse findings of this literature. Using both descriptive statistics and meta-regressions we derive several stylized facts about the two most prominent determinants of money demand–income and interest...

Armstrong et al. (2022) review the empirical methods used in the accounting literature to draw causal inferences. They document a growing number of studies using quasi-experimental methods and provide a critical perspective on this trend as well as the use of these methods in the accounting...

In this chapter we provide a brief overview of the main empirical tools used by economists to study international migration. We begin by exploring the three broad research areas that economists examine when researching immigration. We then explore the strengths and shortcomings of the standard...

Regression methods are commonly used in competition lawsuits for, e.g., determining overcharges in pricefixing cases. Technical evaluations of these methods' pros and cons are not necessarily intuitive. Appraisals that are based on case studies are descriptive but need not be universally valid....

This paper evaluates the effectiveness of the introduction of a Writing Center at a university. The center has the purpose to provide subject-specific courses that aim to improve students' abilities of scientific writing. In order to deal with presumed selfperceptional biases of students in...