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Ready for Take-off? – Gestaltung und Wahrnehmung von Reiseimpfberatungschatbots

Greulich, R. Stefan; Pietrantoni, Nico; Hildebrandt, Fabian - In: HMD Praxis der Wirtschaftsinformatik 59 (2022) 6, pp. 1626-1639

Der Einsatz von Sprachassistenten (Alltagsbeispiele sind Alexa von Amazon, Siri von Apple oder der Chatbot von Hellofresh) hat auch im Gesundheitswesen Einzug gehalten. Ein aktuelles Beispiel ist der WhatsApp Chatbot der WHO, welcher Nutzer:innen über COVID-19 aufklärt. Sprachassistenten haben...

Persistent link: https://www.econbiz.de/10015190274

A structural model of coronavirus behaviour: What do four waves of Covid tell us?

Meenagh, David; Minford, Patrick - 2022

hospitalisation and fatality rates of vaccination and population immunity due to past infection: the latter was the most signiÖcant … factor driving both trends, while the vaccination rate also had a signiÖcant short run e§ect on the fatality rate. We also …

Persistent link: https://www.econbiz.de/10014480726

Optimal Disease Eradication

Hoel, Michael; Barrett, Scott - 2004

optimal. When eradication is feasible, the optimal program requires either a low vaccination rate or eradication. A high … vaccination rate is never optimal. Under special conditions, the results are especially stark: the optimal policy is either not to …

Persistent link: https://www.econbiz.de/10011324931

Social networks and vaccination decisions

Rao, Neel; Möbius, Markus M.; Rosenblat, Tanya - 2007

private university allows us to estimate how peer effects influence health beliefs and vaccination choices. Our results … positive peer effects on individuals' vaccination decisions. A student becomes up to 8.3 percentage points more likely to get … inoculation clinics suggests that students coordinate their vaccination decisions with their friends. …

Persistent link: https://www.econbiz.de/10010280911

Consumer shopping costs as a cause of slotting fees: A rent-shifting mechanism

Caprice, Stéphane; von Schlippenbach, Vanessa - 2010

Analyzing a sequential bargaining framework with one retailer and two suppliers of substitutable goods, we show that slotting fees may emerge as a result of a rent-shifting mechanism when consumer shopping costs are taken into account. If consumers economize on their shopping costs by bundling...

Persistent link: https://www.econbiz.de/10010276712

Electronic Commerce and Retail Channel Substitution

Janssen, Maarten C.W.; van der Noll, Rob - 2002

We analyze a market where firms compete in a conventional and an electronicretail channel. Consumers easily compare prices online, but some incur purchaseuncertainties on the online channel. We investigate the market shares of the two retailchannels and the prices that are charged. We find that...

Persistent link: https://www.econbiz.de/10010324893

Preference for variety

Kaiser, Karen; Schwabe, Rainer - 2011

We consider a decision maker who enjoys choosing from a varied set of alternatives. Building on behavioral evidence, we propose testable axioms which characterize preference for variety, and provide a representation theorem. We go on to illustrate the potential effects of preference for variety...

Persistent link: https://www.econbiz.de/10010322612

Discrete and continuous time dynamic mean-variance analysis

Reiss, Ariane - 1999

Contrary to static mean-variance analysis, very few papers have dealt with dynamic mean-variance analysis. Here, the mean-variance efficient self-financing portfolio strategy is derived for n risky assets in discrete and continuous time. In the discrete setting, the resulting portfolio is...

Persistent link: https://www.econbiz.de/10010305021

Saving rates and portfolio choice with subsistence consumption

Achury, Carolina; Hubar, Sylwia; Koulovatianos, Christos - 2011

We analytically show that a common across rich/poor individuals Stone-Geary utility function with subsistence consumption in the context of a simple two-asset portfolio-choice model is capable of qualitatively and quantitatively explaining: (i) the higher saving rates of the rich, (ii) the...

Persistent link: https://www.econbiz.de/10010308579

Optimism, pessimism and the unforeseen: Modelling an endogenous business cycle driven by strong beliefs

Sell, Friedrich L. - 2002

Indicators of trust, confidence, optimism or sentiment among consumers and/or investors, are published continuously in the mass media. More importantly, these indices seem not only to reflect how the state of the real economy is perceived by private agents, but can also help predict the future...

Persistent link: https://www.econbiz.de/10010300404