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These models fail to account for the dynamic nature of product development and the complex decision-making processes of consumers, particularly under the influence of social networks. To address this gap, this study presents a networked demand model based on decision field theory (DFT), focusing on the impact of network effects on consumer behavior. By incorporating the influence of social networks into the DFT-based demand model, we aim to capture how the decision-making process and subsequent demand are shaped by social interactions. We validate the networked model using real-world data from competing software products, demonstrating its practical applicability. Furthermore, we provide insight into how the network structure and strength of social influence impact demand.<\/jats:p>","DOI":"10.1115\/1.4068525","type":"journal-article","created":{"date-parts":[[2025,4,24]],"date-time":"2025-04-24T16:50:03Z","timestamp":1745513403000},"update-policy":"https:\/\/doi.org\/10.1115\/crossmarkpolicy-asme","source":"Crossref","is-referenced-by-count":0,"title":["Demand Estimation for Evolving Products Considering Network Effects: A Networked Affinity Dynamics Model"],"prefix":"10.1115","volume":"25","author":[{"given":"Ian","family":"Walter","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/02dqehb95","id-type":"ROR","asserted-by":"publisher"}],"name":"Purdue University Elmore Family School of Electrical and Computer Engineering, , , \u00a0","place":["West Lafayette, IN, 47907"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Philip E.","family":"Par\u00e9","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/02dqehb95","id-type":"ROR","asserted-by":"publisher"}],"name":"Purdue University Elmore Family School of Electrical, and Computer Engineering, , , \u00a0","place":["West Lafayette, IN, 47907"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jitesh H.","family":"Panchal","sequence":"additional","affiliation":[{"name":"Purdue University School of Mechanical Engineering, , , \u00a0","place":["West Lafayette, IN, 47907"]}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"33","published-online":{"date-parts":[[2025,5,19]]},"reference":[{"issue":"4","key":"2025051913392467900_CIT0001","doi-asserted-by":"publisher","first-page":"041004","DOI":"10.1115\/1.4025257","article-title":"Enhancing the Product Realization Process With Cloud-Based Design and Manufacturing Systems","volume":"13","author":"Wu","year":"2013","journal-title":"ASME J. 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