Through social media, politicians can personalize their campaigns and target specific groups of voters with an unprecedented precision. We assess the effects of such political micro-targeting by exploiting daily advertising prices on Facebook during the 2016 US presidential campaign. We measure...

We quantify the prevalence of undisclosed influencer posts on Twitter across a large set of brands based on a unique data set of over 100 million posts. We develop a novel method to detect undisclosed influencer posts and find that 96% of influencer posts are not disclosed as such. Despite...

This paper examines tourism persistence in a group of Southeastern European (SEE) countries (Albania, Bosnia, Bulgaria, Croatia, Montenegro, North Macedonia, Serbia and Slovenia) by applying fractional integration methods to monthly data on foreign tourist arrivals and overnight stays. The...

We use anonymized and aggregated data from Facebook to show that areas with stronger social ties to two early COVID-19 "hotspots" (Westchester County, NY, in the U.S. and Lodi province in Italy) generally have more confirmed COVID-19 cases as of March 30, 2020. These relationships hold after...

Economic development of a remote, mountainous region is a challenge for any country. This paper examines how this development challenge has been addressed in a high-altitude backward region of the People's Republic of China. Is this region increasingly being left behind or has it entered a...

This paper examines tourism persistence in a group of Southeastern European (SEE) countries (Albania, Bosnia, Bulgaria, Croatia, Montenegro, North Macedonia, Serbia and Slovenia) by applying fractional integration methods to monthly data on foreign tourist arrivals and overnight stays. The...

Tourism accounts for around one tenth of global GDP. We analyze the impact of entertainment media in drawing tourists to filming locations (media multiplier ) and, in turn, the effect of tourism on local economic development (tourism multiplier ). To assess the media multiplier, we employ a...

Economic development of a remote, mountainous region is a challenge for any country. This paper examines how this development challenge has been addressed in a high-altitude backward region of the People's Republic of China. Is this region increasingly being left behind or has it entered a...

Tourism accounts for around one tenth of global GDP. We analyze the impact of entertainment media in drawing tourists to filming locations (media multiplier ) and, in turn, the effect of tourism on local economic development (tourism multiplier ). To assess the media multiplier, we employ a...

A lack of platform-level competition among digital marketplaces can result in socially inefficient platform design and meaningful welfare losses, even independent of actively anticompetitive behavior. To illustrate the first-order effects platform design can have on competitive outcomes, I...