Investor Awareness and PSY-chology Surrounding ‘Gangnam Style’
July 16, 2013 Leave a comment
Investor Awareness and PSY-chology Surrounding ‘Gangnam Style’
Y. Han (Andy) Kim Nanyang Technological University (NTU)
Ho Sung Jung Bank of Korea
July 11, 2013
Abstract:
The historically unprecedented success of “Gangnam Style,” the 18th K-pop single by the South Korean rapper musician PSY that went global in 2012, was an exogenous shock to investor awareness and enthusiasm about DI Corp., the company founded by the Korean rapper’s father. Equipped with Korean microstructure data that identifies non-resident foreign individual investors by their country of origin, we study the impact of investor awareness and enthusiasm about DI Corp.’s stock and related individual investor behavior. We find that the number of unique countries where non-resident foreign institutional investors place orders for the DI Corp. stock (excluding offshore Koreans) more than doubled after “Gangnam Style” was released, which supports Merton (1987). In addition, using the count of parody videos and flash mobs uploaded on YouTube from each country as a proxy for the enthusiasm of individual investors about DI Corp., we find that non-resident (resident) foreign individual investors become net buyers (sellers) when the count of the uploads increases in their country. In contrast, we find that non-resident foreign institutional investors short sell the stock after the release of the song, except for a period of excessive cost of arbitrage.
