We examine whether empirical results using text-based sentiment of U.S. annual reports depend on the underlying context, within documents, from which sentiment is measured. We construct a clause-level measure of context, showing that sentiment is driven by many different contexts and that...

Organizations which provide electronic services do not have a logically structured strategy for implementing Customer Knowledge Management through Social media (SCKM). By assessing the position of SCKM, organizations can have a clear understanding of their maturity level and find their future...

Two (non-exhaustive) conditions are necessary for knowledge accumulation: unbiasedness and comparability. Research designs should be unbiased so that researchers obtain correct estimates of an underlying quantity. Empirical specifications should permit comparability so that researchers measure...

Political competition, party strategy and communication in the era of social media are growing issues. Due to the increasing social media presence of parties and voters alike, direct communication is more important for party competition. This paper aims to improve the methodological approach...

This paper assesses the results of an experiment designed to identify discrimination in users' following behavior on Twitter. Specifically, we created fictitious bot accounts that resembled humans and claimed to be PhD students in economics. The accounts differed in three characteristics: gender...

This dissertation consists of four distinct empirical essays that address various aspects of the economics of education. Chapters 2 and 3 show that patience and risk-taking as intertemporal preferences are closely related to differences in student achievement across and within countries. Chapter...

This study explores the relationship between social media and democracy in a cross- section of over 125 countries around the world. We find the evidence of a strong, positive correlation between Facebook penetration (a proxy for social media) and democracy. We further show that the correlation...

Does social media or offline social cohesion overcome collective action problems more effectively when both types of networks are prevalent? We investigate non-violent protests against a place-based economic reform in Austria - a country where one in two citizens uses Facebook but also one in...

Social media have become a main source of information for many voters. Political interest groups on social media platforms have the ability to (i) microtarget news based on individual-level voter data and (ii) obfuscate their identities, which can be exploited to spread disinformation. Two...