Search Engine Advertising is one of the fastest growing instruments in online marketing and a major source of costs for online advertisers. In this research, we empirically and experimentally investigate the impact of ad positioning on key performance indicators in search engine advertising...

It is well known that consumer ratings play a major role in the purchase decisions of online shoppers. To examine the effect of the variance of these ratings on future product pricing and sales we propose an analytical model which considers products where the variance of consumer ratings results...

We empirically evaluate the job performance effects of a 6 month part-time training program in a large retail chain, in which participants received feedback on their training success based on a final exam. The data's quasi-experimental structure allows comparison of sales revenue of trained and...

We econometrically evaluate the performance effects of a six month eâ€learning programme in a large retail chain with monthly data on organizational level sales revenue, for four years using panel regressions. Members of initiating cohorts show positive performance effects during training...

We empirically evaluate wage returns to company training using representative individual-level cross-sectional data for the years 2000, 2003, and 2007. A comparison group approach allows comparing wages of participants with non-participants, who were willing to participate in training, yet were...

Research on the process of training evaluation has progressed in many independent fields. In our study, we combine the unique views on training, and training evaluation from the fields of psychology, education, economics, and econometrics. Psychology and education provide knowledge on how to...

Experience goods are characterized by information asymmetry and a lack of ex ante knowledge of product quality, such that reliable external signals of product quality are likely to be highly valued. Two potentially credible sources of such information are reviews from professional critics with...

The objective of this study is the analysis of movie success mechanisms in a genre-specific context. Instead of the examination of all time box office champions, we focus on the two film genres of computer animated and comic book based films. By introducing the concept of the motion-picture...

Customers continuously evaluate the credibility and reliability of a range of signals both separately and jointly. However, existing econometric studies pay insufficient attention to the interactions and complex combinations of these signals, and are typically limited as a result of difficulties...

Depending on which combination of factors is used in empirical analyses, regression results lead to varying levels of significance or even insignificance and, consequently, to inconsistent results. Linear algebra and linear regression models are apparently not able to analyze complex causal...