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Quantifying the effects of online bullishness on international financial markets

Mao, Huina; Counts, Scott; Bollen, Johan - 2015

Computational methods to gauge investor sentiment from commonly used online data sources that rely on machine learning classifiers and lexicons have shown considerable promise, but suffer from measurement and classification errors. In our work, we develop a simple, direct and unambiguous...

Persistent link: https://www.econbiz.de/10011664041

An economic policy perspective on online platforms

Martens, Bertin - 2016

This report provides an overview of the relevant economic research literature on platforms or multi-sided online markets. It discusses platforms from a regulatory policy angle, including potential market failures in platforms, the extent of self-regulation and possible regulatory responses...

Persistent link: https://www.econbiz.de/10011980703

Quality discrimination in online multi-sided markets

Duch-Brown, Néstor - 2017

The aim of this paper is to explain evidence of unfair practices by online platforms towards business users, particularly SME's. First, using survey data, we show that sellers operating with four different categories of platforms multi-home (marketplaces, app stores, social networks and online...

Persistent link: https://www.econbiz.de/10011980938

Effects of an ad valorem Web Tax in a Cournot-Nash market for digital advertising

D'Andria, Diego - 2018 - This version: December 2018

We extend the theory of tax incidence under Cournot-Nash oligopolistic competition to study the effects of an ad valorem sales tax on Web services (so-called Web Tax) that are provided free of charge to users, and produce advertising space sold to businesses. Ads are more valuable to advertisers...

Persistent link: https://www.econbiz.de/10011982174

Behavioural study on advertising and marketing practices in online social media : final report

GfK Belgium <Körperschaft>; Europäische Kommission / … - 2018

Persistent link: https://www.econbiz.de/10011974593

The digital transformation of news media and the rise of disinformation and fake news

Martens, Bertin; Aguiar, Luis; Gomez-Herrera, Estrella; … - 2018

types of disinformation and finds that there is no consensus on this. It presents some survey data on consumer trust and … quality perceptions of various sources of online news that indicate relatively high trust in legacy printed and broadcasted … news publishers and lower trust in algorithm-driven news distribution channels such as aggregators and social media. Still …

Persistent link: https://www.econbiz.de/10011980980

Consumer perceptions of (cross-border) ecommerce in the EU Digital Single Market

Cardona, Mélisande; Duch-Brown, Néstor; Martens, Bertin - 2015

This report presents empirical evidence about the obstacles that European consumers face when trying to buy online goods and services in other EU Member States. It relies on data from a consumer survey carried out in February-March 2015 in the EU28. By comparing named websites with respondents'...

Persistent link: https://www.econbiz.de/10011980169

The competitive landscape of online platforms

Duch-Brown, Néstor - 2017

This paper describes the different forces that shape the market structure of four different "online platform ecosystems" and the competition between them. The paper focuses on the following categories of platforms, which represent a wide scope of online activities: (i) e-commerce marketplaces;...

Persistent link: https://www.econbiz.de/10011980790

Platforms to business relations in online platform ecosystems

Duch-Brown, Néstor - 2017

This report presents evidence on the relationship between online platforms and businesses using these platforms to reach consumers or conduct their operations. First, we review the literature on vertical relationships both from a classic approach and from a multi-sided market perspective....

Persistent link: https://www.econbiz.de/10011980948

Financing social protection in Namibia

Schade, Klaus; La, Justina; Pick, Alexander - 2019

Namibia is an upper middle-income country with one of the most comprehensive social protection systems in Africa. It provides cash transfers and complementary social assistance to a range of vulnerable groups including children, the elderly and people with disabilities, at a cost equivalent to...

Persistent link: https://www.econbiz.de/10012060840

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