spb/uqo-research-db

1\contentsline {section}{\numberline {1}Introduction}{4}{section.1}%2\contentsline {paragraph}{Contributions.}{5}{paragraph*.1}%3\contentsline {paragraph}{Caveats up front.}{5}{paragraph*.2}%4\contentsline {section}{\numberline {2}Related Literature}{6}{section.2}%5\contentsline {paragraph}{Text as data.}{6}{paragraph*.3}%6\contentsline {paragraph}{LLMs for extraction and measurement.}{6}{paragraph*.4}%7\contentsline {paragraph}{Corporate investment.}{6}{paragraph*.5}%8\contentsline {paragraph}{Innovation and diffusion.}{6}{paragraph*.6}%9\contentsline {paragraph}{Networks and representations.}{7}{paragraph*.7}%10\contentsline {section}{\numberline {3}Data and Extraction Pipeline}{7}{section.3}%11\contentsline {subsection}{\numberline {3.1}Source corpus}{7}{subsection.3.1}%12\contentsline {subsection}{\numberline {3.2}LLM extraction}{7}{subsection.3.2}%13\contentsline {subsection}{\numberline {3.3}Resolution, graph, and embeddings}{7}{subsection.3.3}%14\contentsline {subsection}{\numberline {3.4}The economics of extraction}{8}{subsection.3.4}%15\contentsline {subsection}{\numberline {3.5}Analysis datasets}{8}{subsection.3.5}%16\contentsline {section}{\numberline {4}Descriptive Evidence and Stylized Facts}{9}{section.4}%17\contentsline {paragraph}{Volume and trend.}{9}{paragraph*.9}%18\contentsline {paragraph}{Composition.}{9}{paragraph*.11}%19\contentsline {paragraph}{Sectoral structure.}{11}{paragraph*.14}%20\contentsline {paragraph}{Capital and geography.}{12}{paragraph*.17}%21\contentsline {subsection}{\numberline {4.1}Six stylized facts}{13}{subsection.4.1}%22\contentsline {section}{\numberline {5}Econometric Framework}{13}{section.5}%23\contentsline {paragraph}{(i) Count models.}{14}{paragraph*.19}%24\contentsline {paragraph}{(ii) Hedonic capital regressions.}{14}{paragraph*.20}%25\contentsline {paragraph}{(iii) Diffusion.}{14}{paragraph*.21}%26\contentsline {paragraph}{(iv) Difference-in-differences.}{14}{paragraph*.22}%27\contentsline {paragraph}{(v) Survival.}{14}{paragraph*.23}%28\contentsline {paragraph}{(vi) Networks and representations.}{14}{paragraph*.24}%29\contentsline {paragraph}{(vii) Prediction.}{15}{paragraph*.25}%30\contentsline {section}{\numberline {6}The Extensive Margin: Count Models}{15}{section.6}%31\contentsline {section}{\numberline {7}The Intensive Margin: What Drives Announced Capital?}{16}{section.7}%32\contentsline {section}{\numberline {8}Technology Diffusion: The Rise of Corporate AI}{18}{section.8}%33\contentsline {section}{\numberline {9}COVID-19 and Digitalization: A Difference-in-Differences Test}{19}{section.9}%34\contentsline {section}{\numberline {10}Project Lifecycles: Survival Analysis}{20}{section.10}%35\contentsline {section}{\numberline {11}The Innovation Network}{22}{section.11}%36\contentsline {section}{\numberline {12}Latent Themes: Embedding the Project Corpus}{24}{section.12}%37\contentsline {section}{\numberline {13}Predicting Mega-Projects}{25}{section.13}%38\contentsline {section}{\numberline {14}Robustness and Validation}{26}{section.14}%39\contentsline {paragraph}{Extraction quality.}{26}{paragraph*.44}%40\contentsline {paragraph}{Estimator robustness.}{27}{paragraph*.45}%41\contentsline {paragraph}{Parallel trends.}{27}{paragraph*.46}%42\contentsline {paragraph}{Level vs.\ composition.}{27}{paragraph*.47}%43\contentsline {paragraph}{Sample.}{27}{paragraph*.48}%44\contentsline {section}{\numberline {15}Limitations}{27}{section.15}%45\contentsline {section}{\numberline {16}Discussion and Implications}{28}{section.16}%46\contentsline {paragraph}{For methodology.}{28}{paragraph*.49}%47\contentsline {paragraph}{For the study of investment.}{28}{paragraph*.50}%48\contentsline {paragraph}{For the AI-diffusion debate.}{28}{paragraph*.51}%49\contentsline {paragraph}{For practice.}{28}{paragraph*.52}%50\contentsline {section}{\numberline {17}Conclusion}{29}{section.17}%51\contentsline {section}{\numberline {A}Project Taxonomy and Variable Definitions}{30}{appendix.A}%52\contentsline {section}{\numberline {B}Pipeline and Reproducibility}{30}{appendix.B}%53