Adform=window.Adform||{};
Adform.host="https://a1.adform.net";
Adform.shost="https://s2.adform.net";
Adform.scriptBase=Adform.shost+"/banners/scripts/";
Adform.cache="620";
Adform.ADFBannerData={"URL":"https://a1.adform.net/adfserve/?CC=1&bn=39065886;click=https://adclick.g.doubleclick.net/pcs/click?xai=AKAOjsvUBO1HALZd-6c6iKptuT2_bsSIi-bv1rxRjia388Ncg3gzqMQneyxoiHFmDHzIvjK0S3kB6nkqjYrN4cu0A4ui0ohI7MdL2UjlSUydn08h1UjqhE-cu-I2iIgwao3zl00YLIzOMfCIxuo7KdKOrqO8mwCm9uO1fRzpM-bC_XOO4H0tOZMm6STnvP6W9bak6S1Sn8QJH9-w0MxErAmfsfiOHFTCrEXjj0HadxPrlTvBv42kYHsSVk0q1YAXlIqxmp1eZgHsdzAn&sai=AMfl-YQce-T5Kp-e1XPY4eEzI_QAmxljSrZQqB0D3X2D936TLGGM2xJzCH-94G0Db0C3SRdgcr2jNP61jsVPn7HrJXdc03borSmhCUlEb9Jm_-JmC9M33VEU5YV93A8ZAek&sig=Cg0ArKJSzIZgu0nlnIqSEAE&urlfix=1&adurl=","CREFURL":"https%3a%2f%2fwww.economist.com%2fleaders%2f2015%2f04%2f04%2fspace-and-the-city","BN":39065886,"READ_CONSENT":true};
if(!Adform.ADFBannerParams)Adform.ADFBannerParams=[];
Adform.ADFBannerParams.push(Adform.ADFBannerData);
typeof Adform.ADFUtilInstance=="undefined"?document.write('<scr'+'ipt type="text/javascript" src="https://s2.adform.net/stoat/620/s2.adform.net/bootstrap.js"></scr'+'ipt>'):new Adform.ADFBanner();