AirBnb, now with more than 6 million listings around the world, has settled as one of the leading actors of Sharing Economy, opening a debate about its social and economic implications. While considered by some as a risk factor for neighbourhoods and a tax evader for governments, others see it as an economy engine. This thesis studies the economic impact of AirBnb in global and local context. Globally, applying the event study methodology, it was found that the value of 6 important companies in the hospitality industry decreased when AirBnb showed significant growth. Locally, using a measure for AirBnb density and a hedonic price model definition, it was quantified the irruption of AirBnb in the behavior of real state sales prices in Cartagena.
