{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Marginal Cost in the New Economy: A Proposal for a Uniform Approach to Policy Evaluations","author_name":"Roger L. Conkling","thumbnail_url":"https://www.ebooknetworking.net/books/076/560/big0765608499.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0765608499.html\">Marginal Cost in the New Economy: A Proposal for a Uniform Approach to Policy Evaluations</a>","width":400,"height":300}