{"title":"商品流动重力模型","authors":"John H. Niedercorn , Josef D. Moorehead","doi":"10.1016/0034-3331(74)90018-9","DOIUrl":null,"url":null,"abstract":"<div><p>A generalized gravity model is shown to be the proper tool for describing commodity flows in space generated by a revenue maximizing monopolistic firm. Hartwick's finding that the slope and intercept parameters of the logarithmic transformation of the commodity flow gravity equation are positively correlated is confirmed and a theoretical explanation of this phenomenon is provided.</p></div>","PeriodicalId":101068,"journal":{"name":"Regional and Urban Economics","volume":"4 1","pages":"Pages 69-75"},"PeriodicalIF":0.0000,"publicationDate":"1974-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0034-3331(74)90018-9","citationCount":"12","resultStr":"{\"title\":\"The commodity flow gravity model\",\"authors\":\"John H. Niedercorn , Josef D. Moorehead\",\"doi\":\"10.1016/0034-3331(74)90018-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A generalized gravity model is shown to be the proper tool for describing commodity flows in space generated by a revenue maximizing monopolistic firm. Hartwick's finding that the slope and intercept parameters of the logarithmic transformation of the commodity flow gravity equation are positively correlated is confirmed and a theoretical explanation of this phenomenon is provided.</p></div>\",\"PeriodicalId\":101068,\"journal\":{\"name\":\"Regional and Urban Economics\",\"volume\":\"4 1\",\"pages\":\"Pages 69-75\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1974-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0034-3331(74)90018-9\",\"citationCount\":\"12\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Regional and Urban Economics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0034333174900189\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Regional and Urban Economics","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0034333174900189","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A generalized gravity model is shown to be the proper tool for describing commodity flows in space generated by a revenue maximizing monopolistic firm. Hartwick's finding that the slope and intercept parameters of the logarithmic transformation of the commodity flow gravity equation are positively correlated is confirmed and a theoretical explanation of this phenomenon is provided.
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