Analyze the relationship between 'Airbnb' and 'Brian Chesky' within the context of the input sentence.
Options: parent organization, founded by, developer, business division

(Credit: David Medeiros) "This is a new economy, the sharing economy," declared Airbnb CEO Brian Chesky last November at an event for some the company's avid hosts, who routinely rent out their spare bedrooms and apartments for short-term stays through the company's website.
founded by