{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Testing to confirm that Leontief-Sraffa matrix equations for input/output must obey constancy of returns to scale [An article from: Economics Letters]","author_name":"P.A. Samuelson, E.M. Etula","thumbnail_url":"https://www.ebooknetworking.net/books/B00/0RR/bigB000RR58GW.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B000RR58GW.html\">Testing to confirm that Leontief-Sraffa matrix equations for input/output must obey constancy of returns to scale [An article from: Economics Letters]</a>","width":400,"height":300}