[{"abstract":[{"text":"We suggest in this paper to treat the problem of smoothing demand by aggregation in a two-step procedure, corresponding to the two different constituents of consumption characteristics, wealth and preferences. Instead of imposing a manifold structure on preferences we exploit the nice structure of wealth-space. The first step of this procedure, aggregation with respect to wealth, is carried out. It is shown that, for any preference, aggregation with respect to wealth yields a mean demand which is almost everywhere C 1. Moreover, it is shown that for an important class of preferences, vanishing Gaussian curvature of indifference surfaces does not destroy differentiability of the mean demand function.","lang":"eng"}],"status":"public","accept":"1","issue":"3","type":"journal_article","_id":"1781403","date_submitted":"2011-01-10T10:12:39Z","urn":"urn:nbn:de:0070-pub-17814036","volume":"7","publication_identifier":{"issn":["0304-4068"]},"date_created":"2018-07-24T12:59:16Z","oa":1,"publication":"Journal of Mathematical Economics","ddc":["650"],"first_author":"Dierker, Egbert","citation":{"chicago":"Dierker, Egbert, Dierker, Hildegard, and Trockel, Walter. 1980. “Smoothing demand by aggregation with respect to wealth”. *Journal of Mathematical Economics* 7 (3): 227-247.

","dgps":"Dierker, E., Dierker, H. & Trockel, W. (1980). Smoothing demand by aggregation with respect to wealth. *Journal of Mathematical Economics*, *7*(3), 227-247. doi:10.1016/0304-4068(80)90011-7.

","apa":"Dierker, E., Dierker, H., & Trockel, W. (1980). Smoothing demand by aggregation with respect to wealth. *Journal of Mathematical Economics*, *7*(3), 227-247. doi:10.1016/0304-4068(80)90011-7","apa_indent":"Dierker, E., Dierker, H., & Trockel, W. (1980). Smoothing demand by aggregation with respect to wealth. *Journal of Mathematical Economics*, *7*(3), 227-247. doi:10.1016/0304-4068(80)90011-7

","bio1":"Dierker E, Dierker H, Trockel W (1980)

Smoothing demand by aggregation with respect to wealth.

Journal of Mathematical Economics 7(3): 227-247.","ama":"Dierker E, Dierker H, Trockel W. Smoothing demand by aggregation with respect to wealth. *Journal of Mathematical Economics*. 1980;7(3):227-247.","angewandte-chemie":"E. Dierker, H. Dierker, and W. Trockel, “Smoothing demand by aggregation with respect to wealth”, *Journal of Mathematical Economics*, **1980**, *7*, 227-247.","mla":"Dierker, Egbert, Dierker, Hildegard, and Trockel, Walter. “Smoothing demand by aggregation with respect to wealth”. *Journal of Mathematical Economics* 7.3 (1980): 227-247.","wels":"Dierker, E.; Dierker, H.; Trockel, W. (1980): Smoothing demand by aggregation with respect to wealth *Journal of Mathematical Economics*,7:(3): 227-247.","harvard1":"Dierker, E., Dierker, H., & Trockel, W., 1980. Smoothing demand by aggregation with respect to wealth. *Journal of Mathematical Economics*, 7(3), p 227-247.","aps":" E. Dierker, H. Dierker, and W. Trockel, Smoothing demand by aggregation with respect to wealth, Journal of Mathematical Economics **7**, 227 (1980).","lncs":" Dierker, E., Dierker, H., Trockel, W.: Smoothing demand by aggregation with respect to wealth. Journal of Mathematical Economics. 7, 227-247 (1980).","ieee":" E. Dierker, H. Dierker, and W. Trockel, “Smoothing demand by aggregation with respect to wealth”, *Journal of Mathematical Economics*, vol. 7, 1980, pp. 227-247.","default":"Dierker E, Dierker H, Trockel W (1980)

*Journal of Mathematical Economics* 7(3): 227-247.","frontiers":"Dierker, E., Dierker, H., and Trockel, W. (1980). Smoothing demand by aggregation with respect to wealth. *Journal of Mathematical Economics* 7, 227-247."},"external_id":{"isi":["A1980KW25900002"]},"year":"1980","author":[{"last_name":"Dierker","first_name":"Egbert","autoren_ansetzung":["Dierker, Egbert","Dierker","Egbert Dierker","Dierker, E","Dierker, E.","E Dierker","E. Dierker"],"full_name":"Dierker, Egbert"},{"full_name":"Dierker, Hildegard","autoren_ansetzung":["Dierker, Hildegard","Dierker","Hildegard Dierker","Dierker, H","Dierker, H.","H Dierker","H. Dierker"],"first_name":"Hildegard","last_name":"Dierker"},{"autoren_ansetzung":["Trockel, Walter","Trockel","Walter Trockel","Trockel, W","Trockel, W.","W Trockel","W. Trockel"],"orcid_put_code_url":"https://api.orcid.org/v2.0/0000-0001-9827-6424/work/34712677","last_name":"Trockel","first_name":"Walter","orcid":"0000-0001-9827-6424","id":"62508","full_name":"Trockel, Walter"}],"doi":"10.1016/0304-4068(80)90011-7","page":"227-247","id":"1781403","date_updated":"2018-07-24T12:59:16Z","isi":"1","file":[{"file_id":"2313288","date_updated":"1970-01-01T00:00:00Z","file_name":"Trockel_14.pdf","content_type":"application/pdf","access_level":"open_access","date_created":"1970-01-01T00:00:00Z","relation":"main_file","open_access":"1"}],"title":"Smoothing demand by aggregation with respect to wealth","department":[{"_id":"10053"}],"intvolume":" 7","file_date_updated":"1970-01-01T00:00:00Z","language":[{"iso":"eng"}],"publication_status":"published"}]