eprintid: 10196692 rev_number: 13 eprint_status: archive userid: 699 dir: disk0/10/19/66/92 datestamp: 2024-10-10 15:36:32 lastmod: 2024-10-10 15:36:32 status_changed: 2024-10-10 15:36:32 type: thesis metadata_visibility: show sword_depositor: 699 creators_name: Li, Xingyi title: Unstructured Data in Digital Marketing and Supply Chain Management ispublished: unpub divisions: UCL divisions: B04 divisions: F49 note: Copyright © The Author 2024. Original content in this thesis is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) Licence (https://creativecommons.org/licenses/by-nc/4.0/). abstract: The thesis focuses on the utilization of unstructured data in digital marketing and supply chain management. The first chapter, I explore the effect of expert opinions on consumer experience via the lens of consumer reviews in the restaurant industry, where the expert opinions are conveyed by Michelin stars. We apply two synthetic-control-based methods to estimate the effect of Michelin star changes on the sentiment and content of consumer reviews. We find that decreases in Michelin stars improve consumer review ratings, suggesting that the expectation effect of expert opinions is stronger than the reputation effect. In the second chapter, I move to explore how businesses adapt and respond to expert opinions. To do this, we analyze restaurants historical menus to explore how the restaurants responded to Michelin star awards. We find that one of the reasons why restaurants with decreases in Michelin stars received higher star ratings after the star decrease is that they streamlined their menu structure and thereby improved the service quality. In the final chapter, we conduct a spend analysis of a procurement practice for manufacturers. We propose the three-component classification model to automate spend analysis and replicate the experts know-how. Using the spend data from Cranswick plc, a major food producer in the UK, we demonstrate improved accuracy of our methodology and superior performance compared to benchmark models. date: 2024-09-28 date_type: published oa_status: green full_text_type: other thesis_class: doctoral_open thesis_award: Ph.D language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 2310332 lyricists_name: Li, Xingyi lyricists_id: XYLIX00 actors_name: Li, Xingyi actors_id: XYLIX00 actors_role: owner full_text_status: public pages: 167 institution: UCL (University College London) department: UCL School of Management thesis_type: Doctoral citation: Li, Xingyi; (2024) Unstructured Data in Digital Marketing and Supply Chain Management. Doctoral thesis (Ph.D), UCL (University College London). Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10196692/2/PhD_Thesis.pdf