{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"When Rules Change: The Economics of Retroactivity (Studies in Law and Economics)","author_name":"Daniel N. Shaviro","thumbnail_url":"https://www.ebooknetworking.net/books/022/675/big0226751147.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0226751147.html\">When Rules Change: The Economics of Retroactivity (Studies in Law and Economics)</a>","width":400,"height":300}