{"title":"影响活动","authors":"Evan Sadler","doi":"10.1257/mic.20210387","DOIUrl":null,"url":null,"abstract":"Firms and politicians, among others, invest heavily to influence people’s opinions. Because peers influence one another, these efforts must account for social networks. Using a model of opinion dynamics with a non-degenerate steady state, I develop a new measure of influence, and I highlight how opinion fluctuations impact influence campaigns. If agents interact less frequently with those holding different opinions, the variance of public opinion decreases. Consequently, a risk-averse planner focuses on persuading a large majority of agents in a small set of tightly knit groups, while a risk-loving planner makes much broader appeals. (JEL D11, D72, D83, D85, Z13)","PeriodicalId":47467,"journal":{"name":"American Economic Journal-Microeconomics","volume":"208 1","pages":"0"},"PeriodicalIF":2.2000,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Influence Campaigns\",\"authors\":\"Evan Sadler\",\"doi\":\"10.1257/mic.20210387\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Firms and politicians, among others, invest heavily to influence people’s opinions. Because peers influence one another, these efforts must account for social networks. Using a model of opinion dynamics with a non-degenerate steady state, I develop a new measure of influence, and I highlight how opinion fluctuations impact influence campaigns. If agents interact less frequently with those holding different opinions, the variance of public opinion decreases. Consequently, a risk-averse planner focuses on persuading a large majority of agents in a small set of tightly knit groups, while a risk-loving planner makes much broader appeals. (JEL D11, D72, D83, D85, Z13)\",\"PeriodicalId\":47467,\"journal\":{\"name\":\"American Economic Journal-Microeconomics\",\"volume\":\"208 1\",\"pages\":\"0\"},\"PeriodicalIF\":2.2000,\"publicationDate\":\"2023-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"American Economic Journal-Microeconomics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1257/mic.20210387\",\"RegionNum\":2,\"RegionCategory\":\"经济学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ECONOMICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"American Economic Journal-Microeconomics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1257/mic.20210387","RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ECONOMICS","Score":null,"Total":0}
Firms and politicians, among others, invest heavily to influence people’s opinions. Because peers influence one another, these efforts must account for social networks. Using a model of opinion dynamics with a non-degenerate steady state, I develop a new measure of influence, and I highlight how opinion fluctuations impact influence campaigns. If agents interact less frequently with those holding different opinions, the variance of public opinion decreases. Consequently, a risk-averse planner focuses on persuading a large majority of agents in a small set of tightly knit groups, while a risk-loving planner makes much broader appeals. (JEL D11, D72, D83, D85, Z13)
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