We study the impact of expert reviews on the demand for HIV treatments. A novel feature of our study is that we observe two reviews for each HIV drug and focus attention on consumer responses when experts disagree. Reviews are provided by both a doctor and an activist in the HIV lifestyle...

While mobile health (mHealth) apps play an increasingly important role in digitalized health care, little is known regarding the effects of specific mHealth app features on user satisfaction across different healthcare system contexts. Using personal health record (PHR) apps as an example, this...

The digitalization of the every-day life also affects buying habits of customers. Changes that take place regarding these habits result in an increasing number of e-commerce retailers. Online-shops in the business-to-consumer field are especially successful with apparel and electronic products....

To provide a more flexible workhorse model of temporary price reductions or `sales', this paper presents a substantially generalized `clearinghouse' sales framework. Our framework permits multiple dimensions of firm heterogeneity, and views firms as competing directly in utility rather than...

A human subject laboratory experiment compares the real-time market performance of the two most popular auction formats for online ad space, Vickrey-Clarke-Groves (VCG) and Generalized Second Price (GSP). Theoretical predictions made in papers by Varian (2007) and Edelman, et al. (2007) seem to...

Dieses Diskussionspapier beleuchtet die PRME-Verpflichtung der Hochschule Pforzheim und die daraus resultierenden Probleme (Abschnitt 2) aus vier Perspektiven: der erkenntnistheoretischen (Abschnitt 3), der erfahrungswissenschaftlichen (Abschnitt 4), der juristischen (Abschnitt 5) und einer...

In 2013, Stiftung Warentest tested hazelnut chocolate for their leading magazine, called Test. Stiftung Warentest is one of the most important consumer organizations in Germany. Ritter Sport is a high-quality producer of chocolate in Germany. Their hazelnut chocolate did not pass the test. It...

It is sometimes argued that more advertising raises consumption which in turn stimulates output and so economic growth. We test this hypothe- sis using annual German data expressed in terms of GDP for the period 1950-2000. We find that advertising does not Granger-cause growth but Granger-causes...

The success of new start-up firms often depends on timing. It is valuable for the potential entrepreneur to wait for the right moment before starting a new firm. In this paper we provide a theoretical model to determine the optimal time for starting a new firm. We integrate insights from the...

The following paper discusses the social marketing campaign ‘Drink milk. Grow to be great!’. This is the successful Polish health campaign which promotes milk drinking among Polish children. At the very beginning the case of Polish campaign is briefly presented in order to facilitate...