' A v " ED " QSearcr- E' 2. Birdwatching (or \"birding\") is a hobby in which people who care about birds observe birds in their natural habitats. eBird.org is a website on which I l; birdwatchers can publicly report information about the birds they see, in order to l- help other birdwatchers. (For example, Bob can write \"I saw a woodpeckernear F the Economics Department at 11:00 AM today\" and that helps Bill, who is if: particulariy interested in seeing woodpeckers.) Hint: you can assume that the owners of eBird. org cannot prevent individuals from accessing the website. a) (7 points) Suppose that creating a report on eBird is costly - it takes time and effort. Despite these costs, eBird has over 500 million bird entries, from 3! over the world. Using the concepts from this class, interpret this seeming contradiction. b) (9 points) Is it likely that the quantity of birding information provided on eBird.org is at the social optimum? Why or why not? c) (9 points) Last year, eBird.org decided to start featuring the binder who contributed the most observations over the last year on their homepage Reports of bird observations submitted to eBird.org increased. interpret: providing a brief explanation