{"product_id":"2940015520989","title":"Essays On Some Unsettled Questions Of Political Economy","description":"Essays on Some Unsettled Questions of Political Economy (1844) is a treatise on political economics by John Stuart Mill. Walras' law, a principle in general equilibrium theory named in honour of Léon Walras, was first expressed by Mill in this treatise.","brand":"Philtre Libre","offers":[{"title":"Default Title","offer_id":47147786666224,"sku":"2940015520989","price":0.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/2940015520989_p0.jpg?v=1763621094","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/2940015520989","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}