1# WP38 — intended references. Each entry is verified against Crossref (verify_refs.py) before use.2# stream: 1 geography | 2 complexity | 3 online_retail | 4 digital_divide | 5 matching_prices | 6 measurement | 7 institutional3# Entries with no DOI (books, reports) are handled in manual_references.yaml (resolve_dois.py).4- {key: krugman1991, stream: 1, author: "Krugman", title: "Increasing Returns and Economic Geography", year: 1991, why_needed: "Core-periphery model; motivates spatial concentration of production/assortment"}5- {key: krugman1980, stream: 1, author: "Krugman", title: "Scale Economies, Product Differentiation, and the Pattern of Trade", year: 1980, why_needed: "Love-of-variety trade; variety as an outcome of market size (H2)"}6- {key: ellison1997, stream: 1, author: "Ellison Glaeser", title: "Geographic Concentration in U.S. Manufacturing Industries: A Dartboard Approach", year: 1997, why_needed: "Concentration index with a random (dartboard) null; template for RAA null models"}7- {key: ellison2010, stream: 1, author: "Ellison Glaeser Kerr", title: "What Causes Industry Agglomeration? Evidence from Coagglomeration Patterns", year: 2010, why_needed: "Coagglomeration = category co-location; parallels region-category relatedness"}8- {key: duranton2005, stream: 1, author: "Duranton Overman", title: "Testing for Localization Using Micro-Geographic Data", year: 2005, why_needed: "Distance-based localization test with counterfactual nulls; alternative to discrete regions"}9- {key: duranton2004, stream: 1, author: "Duranton Puga", title: "Micro-foundations of urban agglomeration economies", year: 2004, why_needed: "Sharing/matching/learning micro-foundations behind H2"}10- {key: duranton2020, stream: 1, author: "Duranton Puga", title: "The Economics of Urban Density", year: 2020, why_needed: "Density and variety; interpretation of scale-diversity associations"}11- {key: glaeser1992, stream: 1, author: "Glaeser Kallal Scheinkman Shleifer", title: "Growth in Cities", year: 1992, why_needed: "Specialization vs diversity (MAR vs Jacobs) debate framing"}12- {key: henderson1995, stream: 1, author: "Henderson Kuncoro Turner", title: "Industrial Development in Cities", year: 1995, why_needed: "Dynamic externalities, specialization vs diversity evidence"}13- {key: rosenthal2001, stream: 1, author: "Rosenthal Strange", title: "The Determinants of Agglomeration", year: 2001, why_needed: "Determinants of industry concentration at several spatial scales"}14- {key: rosenthal2004, stream: 1, author: "Rosenthal Strange", title: "Evidence on the nature and sources of agglomeration economies", year: 2004, why_needed: "Survey of agglomeration evidence; doubling-density elasticities"}15- {key: combes2015, stream: 1, author: "Combes Gobillon", title: "The Empirics of Agglomeration Economies", year: 2015, why_needed: "Identification problems in agglomeration regressions; caution for H2"}16- {key: moretti2011, stream: 1, author: "Moretti", title: "Local Labor Markets", year: 2011, why_needed: "Spatial equilibrium framing of regional disparities"}17- {key: fujita1999, stream: 1, author: "Fujita Krugman Venables", title: "The Spatial Economy: Cities, Regions, and International Trade", year: 1999, why_needed: "NEG synthesis (book)"}18- {key: davis2020, stream: 1, author: "Davis Dingel", title: "The comparative advantage of cities", year: 2020, why_needed: "Cities' comparative advantage across sectors by skill; regional RCA with population scale"}19- {key: frenken2007, stream: 1, author: "Frenken Van Oort Verburg", title: "Related Variety, Unrelated Variety and Regional Economic Growth", year: 2007, why_needed: "Entropy decomposition of regional variety; diversity measures for H2"}20- {key: baldwin2008, stream: 1, author: "Baldwin Beckstead Brown Rigby", title: "Agglomeration and the Geography of Localization Economies in Canada", year: 2008, why_needed: "Canadian localization evidence with StatCan microdata"}21- {key: polese2004, stream: 1, author: "Polèse Shearmur", title: "Is Distance Really Dead? Comparing Industrial Location Patterns over Time in Canada", year: 2004, why_needed: "Canadian/Quebec regional location patterns; peripheral regions"}22- {key: polese2006, stream: 1, author: "Polèse Shearmur", title: "Why some regions will decline: A Canadian case study with thoughts on local development strategies", year: 2006, why_needed: "Peripheral Quebec regions' decline; context for regional heterogeneity"}23- {key: shearmur2007, stream: 1, author: "Shearmur Polèse", title: "Do Local Factors Explain Local Employment Growth? Evidence from Canada, 1971–2001", year: 2007, why_needed: "Canadian regional growth determinants; scale/distance controls"}24- {key: shearmur2008, stream: 1, author: "Shearmur Doloreux", title: "Urban Hierarchy or Local Buzz? High-Order Producer Service and (or) Knowledge-Intensive Business Service Location in Canada, 1991–2001", year: 2008, why_needed: "Urban hierarchy effects on service location in Canada"}25- {key: mori2005, stream: 1, author: "Mori Nishikimi Smith", title: "A Divergence Statistic for Industrial Localization", year: 2005, why_needed: "KL-divergence based localization statistic; alternative specialization measure"}26- {key: briant2010, stream: 1, author: "Briant Combes Lafourcade", title: "Dots to boxes: Do the size and shape of spatial units jeopardize economic geography estimations?", year: 2010, why_needed: "MAUP for region-level indices (17 administrative regions)"}27- {key: bettencourt2007, stream: 1, author: "Bettencourt Lobo Helbing Kühnert West", title: "Growth, innovation, scaling, and the pace of life in cities", year: 2007, why_needed: "Urban scaling laws; functional form for diversity vs population"}28- {key: youn2016, stream: 1, author: "Youn Bettencourt Lobo Strumsky Samaniego West", title: "Scaling and universality in urban economic diversification", year: 2016, why_needed: "Closest precedent for H2: business-type diversity scales with city size"}29- {key: hong2020, stream: 1, author: "Hong Frank Rahwan Lee Cebrian", title: "The universal pathway to innovative urban economies", year: 2020, why_needed: "Nested industry structure across city sizes; ordering of categories by city size"}30- {key: balassa1965, stream: 2, author: "Balassa", title: "Trade Liberalisation and Revealed Comparative Advantage", year: 1965, why_needed: "Origin of RCA index on which RAA is modelled"}31- {key: hinloopen2001, stream: 2, author: "Hinloopen van Marrewijk", title: "On the empirical distribution of the Balassa index", year: 2001, why_needed: "Skewness/instability of RCA; motivates symmetric/normalized variants"}32- {key: yu2009, stream: 2, author: "Yu Cai Leung", title: "The normalized revealed comparative advantage index", year: 2009, why_needed: "Normalized RCA alternative for robustness of RAA"}33- {key: laursen2015, stream: 2, author: "Laursen", title: "Revealed comparative advantage and the alternatives as measures of international specialization", year: 2015, why_needed: "Symmetric RCA and alternatives"}34- {key: hidalgo2007, stream: 2, author: "Hidalgo Klinger Barabási Hausmann", title: "The Product Space Conditions the Development of Nations", year: 2007, why_needed: "Product space, proximity from co-export; H4 relatedness"}35- {key: hidalgo2009, stream: 2, author: "Hidalgo Hausmann", title: "The building blocks of economic complexity", year: 2009, why_needed: "Method of reflections / ECI; template for H7"}36- {key: hausmann2007, stream: 2, author: "Hausmann Hwang Rodrik", title: "What you export matters", year: 2007, why_needed: "Export sophistication and growth; motivation for complexity indicators"}37- {key: hausmann2011, stream: 2, author: "Hausmann Hidalgo", title: "The network structure of economic output", year: 2011, why_needed: "Nestedness of country-product matrix; null-model justification"}38- {key: tacchella2012, stream: 2, author: "Tacchella Cristelli Caldarelli Gabrielli Pietronero", title: "A New Metrics for Countries' Fitness and Products' Complexity", year: 2012, why_needed: "Fitness-complexity nonlinear alternative to ECI"}39- {key: cristelli2013, stream: 2, author: "Cristelli Gabrielli Tacchella Caldarelli Pietronero", title: "Measuring the Intangibles: A Metrics for the Economic Complexity of Countries and Products", year: 2013, why_needed: "Fitness algorithm properties"}40- {key: servedio2018, stream: 2, author: "Servedio Buttà Mazzilli Tacchella Pietronero", title: "A New and Stable Estimation Method of Country Economic Fitness and Product Complexity", year: 2018, why_needed: "Convergence issues in fitness; stability checks for H7"}41- {key: neffke2011, stream: 2, author: "Neffke Henning Boschma", title: "How Do Regions Diversify over Time? Industry Relatedness and the Development of New Growth Paths in Regions", year: 2011, why_needed: "Regional related diversification with industry relatedness; H4 precedent"}42- {key: boschma2017, stream: 2, author: "Boschma", title: "Relatedness as driver of regional diversification: a research agenda", year: 2017, why_needed: "Relatedness research agenda and caveats"}43- {key: hidalgo2021, stream: 2, author: "Hidalgo", title: "Economic complexity theory and applications", year: 2021, why_needed: "Survey of complexity metrics and their validation"}44- {key: hidalgo2018, stream: 2, author: "Hidalgo Balland Boschma Delgado Feldman Frenken Glaeser He Kogler Morrison Neffke Rigby Stern Zheng Zhu", title: "The Principle of Relatedness", year: 2018, why_needed: "Relatedness principle across exports, patents, industries, occupations"}45- {key: mealy2019, stream: 2, author: "Mealy Farmer Teytelboym", title: "Interpreting economic complexity", year: 2019, why_needed: "ECI equals spectral clustering of similarity network; guides validation of H7 eigenvectors"}46- {key: balland2019, stream: 2, author: "Balland Boschma Crespo Rigby", title: "Smart specialization policy in the European Union: relatedness, knowledge complexity and regional diversification", year: 2019, why_needed: "Regional relatedness density and complexity framework"}47- {key: balland2022, stream: 2, author: "Balland Broekel Diodato Giuliani Hausmann O'Clery Rigby", title: "The new paradigm of economic complexity", year: 2022, why_needed: "State of the art and open problems in complexity"}48- {key: balland2017, stream: 2, author: "Balland Rigby", title: "The Geography of Complex Knowledge", year: 2017, why_needed: "Complexity on patents at city level; non-export base"}49- {key: kogler2013, stream: 2, author: "Kogler Rigby Tucker", title: "Mapping Knowledge Space and Technological Relatedness in US Cities", year: 2013, why_needed: "Knowledge space in cities; relatedness from co-occurrence"}50- {key: rigby2015, stream: 2, author: "Rigby", title: "Technological Relatedness and Knowledge Space: Entry and Exit of US Cities from Patent Classes", year: 2015, year_tol: 2, why_needed: "Entry/exit regressions on relatedness density; H4 specification"}51- {key: content2016, stream: 2, author: "Content Frenken", title: "Related variety and economic development: a literature review", year: 2016, why_needed: "Review of related-variety evidence"}52- {key: morrison2017, stream: 2, author: "Morrison Buldyrev Imbruno Doria Arrieta Rungi Riccaboni Pammolli", title: "On Economic Complexity and the Fitness of Nations", year: 2017, why_needed: "Critique: ECI/fitness sensitivity and comparison"}53- {key: sciarra2020, stream: 2, author: "Sciarra Chiarotti Ridolfi Laio", title: "Reconciling contrasting views on economic complexity", year: 2020, why_needed: "Unified family of complexity metrics; shows sensitivity to algorithm choice"}54- {key: kempbenedict2014, stream: 2, author: "Kemp-Benedict", title: "An interpretation and critique of the Method of Reflections", year: 2014, why_needed: "Critique of method of reflections (MPRA working paper)"}55- {key: muneepeerakul2013, stream: 2, author: "Muneepeerakul Lobo Shutters Bettencourt Smith", title: "Urban Economies and Occupation Space: Can They Get 'There' from 'Here'?", year: 2013, why_needed: "Occupation-based relatedness at city level; non-export base"}56- {key: gao2018, stream: 2, author: "Gao Zhou", title: "Quantifying China's regional economic complexity", year: 2018, why_needed: "Regional ECI from firm/industry data; subnational application"}57- {key: saracco2015, stream: 2, author: "Saracco Di Clemente Gabrielli Squartini", title: "Randomizing bipartite networks: the case of the World Trade Web", year: 2015, why_needed: "Degree-preserving null models for bipartite networks (H7 validation)"}58- {key: hausmann2014, stream: 2, author: "Hausmann Hidalgo Bustos Coscia Simoes Yildirim", title: "The Atlas of Economic Complexity: Mapping Paths to Prosperity", year: 2014, why_needed: "Atlas reference for ECI/PCI methodology (book)"}59- {key: brynjolfsson2003, stream: 3, author: "Brynjolfsson Hu Smith", title: "Consumer Surplus in the Digital Economy: Estimating the Value of Increased Product Variety at Online Booksellers", year: 2003, why_needed: "Value of online variety; long tail origin"}60- {key: brynjolfsson2011, stream: 3, author: "Brynjolfsson Hu Simester", title: "Goodbye Pareto Principle, Hello Long Tail: The Effect of Search Costs on the Concentration of Product Sales", year: 2011, why_needed: "Concentration of sales across channels; H3 reference"}61- {key: brynjolfsson2009, stream: 3, author: "Brynjolfsson Hu Rahman", title: "Battle of the Retail Channels: How Product Selection and Geography Drive Cross-channel Competition", year: 2009, why_needed: "Geography and product selection drive online vs local competition"}62- {key: elberse2008, stream: 3, author: "Elberse", title: "Should You Invest in the Long Tail?", year: 2008, why_needed: "Long-tail counter-evidence (HBR)"}63- {key: zentner2013, stream: 3, author: "Zentner Smith Kaya", title: "How Video Rental Patterns Change as Consumers Move Online", year: 2013, why_needed: "Long tail shift online with consumer fixed effects"}64- {key: quan2018, stream: 3, author: "Quan Williams", title: "Product variety, across-market demand heterogeneity, and the value of online retail", year: 2018, why_needed: "Local tastes and online variety; closest precedent on regional heterogeneity in online demand"}65- {key: dinerstein2018, stream: 3, author: "Dinerstein Einav Levin Sundaresan", title: "Consumer Price Search and Platform Design in Internet Commerce", year: 2018, why_needed: "Platform search design and price dispersion"}66- {key: einav2014, stream: 3, author: "Einav Levin", title: "Economics in the age of big data", year: 2014, why_needed: "Use of private platform data in economics"}67- {key: einav2016, stream: 3, author: "Einav Farronato Levin", title: "Peer-to-Peer Markets", year: 2016, why_needed: "Marketplace design and seller heterogeneity"}68- {key: dolfen2023, stream: 3, author: "Dolfen Einav Klenow Klopack Levin Levin Best", title: "Assessing the Gains from E-Commerce", year: 2023, why_needed: "Gains from e-commerce by location; distance to stores"}69- {key: couture2021, stream: 3, author: "Couture Faber Gu Liu", title: "Connecting the Countryside via E-Commerce: Evidence from China", year: 2021, why_needed: "Rural e-commerce access experiment; closest precedent on rural participation"}70- {key: goldfarb2019, stream: 3, author: "Goldfarb Tucker", title: "Digital Economics", year: 2019, why_needed: "Cost reductions (search, transport, replication) framing"}71- {key: lieber2012, stream: 3, author: "Lieber Syverson", title: "Online versus Offline Competition", year: 2012, why_needed: "Online-offline substitution and store geography"}72- {key: jo2019, stream: 3, author: "Jo Matsumura Weinstein", title: "The Impact of E-Commerce on Relative Prices and Consumer Welfare", year: 2019, why_needed: "E-commerce and spatial price convergence (Japan)"}73- {key: hortacsu2009, stream: 3, author: "Hortaçsu Martínez-Jerez Douglas", title: "The Geography of Trade in Online Transactions: Evidence from eBay and MercadoLibre", year: 2009, why_needed: "Distance still matters in online trade; home bias"}74- {key: blum2006, stream: 3, author: "Blum Goldfarb", title: "Does the internet defy the law of gravity?", year: 2006, why_needed: "Gravity in digital goods consumption; taste-dependent goods"}75- {key: lendle2016, stream: 3, author: "Lendle Olarreaga Schropp Vézina", title: "There Goes Gravity: eBay and the Death of Distance", year: 2016, why_needed: "Distance elasticity lower online than offline"}76- {key: goldmanis2010, stream: 3, author: "Goldmanis Hortaçsu Syverson Emre", title: "E-Commerce and the Market Structure of Retail Industries", year: 2010, why_needed: "E-commerce reallocates share from small to large retailers; H3 concentration"}77- {key: forman2009, stream: 3, author: "Forman Ghose Goldfarb", title: "Competition Between Local and Electronic Markets: How the Benefit of Buying Online Depends on Where You Live", year: 2009, why_needed: "Local store availability shapes online purchases; geography of online demand"}78- {key: choi2011, stream: 3, author: "Choi Bell", title: "Preference Minorities and the Internet", year: 2011, why_needed: "Local preference minorities buy more online; local tastes"}79- {key: barisaac2012, stream: 3, author: "Bar-Isaac Caruana Cuñat", title: "Search, Design, and Market Structure", year: 2012, why_needed: "Theory: lower search costs generate long tail and superstars"}80- {key: tan2017, stream: 3, author: "Tan Netessine Hitt", title: "Is Tom Cruise Threatened? An Empirical Study of the Impact of Product Variety on Demand Concentration", year: 2017, why_needed: "Product variety and demand concentration; superstar vs long tail"}81- {key: zhu2018, stream: 3, author: "Zhu Liu", title: "Competing with complementors: An empirical look at Amazon.com", year: 2018, why_needed: "Platform-seller concentration dynamics"}82- {key: waldfogel2017, stream: 3, author: "Waldfogel", title: "How Digitization Has Created a Golden Age of Music, Movies, Books, and Television", year: 2017, why_needed: "Digitization and product variety"}83- {key: farronato2022, stream: 3, author: "Farronato Fradkin", title: "The Welfare Effects of Peer Entry: The Case of Airbnb and the Accommodation Industry", year: 2022, why_needed: "Platform entry heterogeneity across cities"}84- {key: ellison2009, stream: 3, author: "Ellison Ellison", title: "Search, Obfuscation, and Price Elasticities on the Internet", year: 2009, why_needed: "Online price search frictions"}85- {key: forman2012, stream: 4, author: "Forman Goldfarb Greenstein", title: "The Internet and Local Wages: A Puzzle", year: 2012, why_needed: "Internet benefits concentrated in already-advantaged counties"}86- {key: forman2005, stream: 4, author: "Forman Goldfarb Greenstein", title: "How did location affect adoption of the commercial Internet? Global village vs. urban leadership", year: 2005, why_needed: "Urban leadership in internet adoption by firms"}87- {key: forman2018, stream: 4, author: "Forman Goldfarb Greenstein", title: "How Geography Shapes—and Is Shaped by—the Internet", year: 2018, why_needed: "Survey of geography and the internet"}88- {key: sinai2004, stream: 4, author: "Sinai Waldfogel", title: "Geography and the Internet: is the Internet a substitute or a complement for cities?", year: 2004, why_needed: "Local content online scales with city size; complement to cities"}89- {key: kolko2012, stream: 4, author: "Kolko", title: "Broadband and local growth", year: 2012, why_needed: "Broadband expansion and local employment growth"}90- {key: whitacre2014, stream: 4, author: "Whitacre Gallardo Strover", title: "Broadband's contribution to economic growth in rural areas: Moving towards a causal relationship", year: 2014, why_needed: "Rural broadband and growth (US counties)"}91- {key: haller2015, stream: 4, author: "Haller Lyons", title: "Broadband adoption and firm productivity: Evidence from Irish manufacturing firms", year: 2015, why_needed: "Firm-level broadband adoption evidence"}92- {key: haller2019, stream: 4, author: "Haller Lyons", title: "Effects of broadband availability on total factor productivity in service sector firms: Evidence from Ireland", year: 2019, why_needed: "Broadband availability and service firms"}93- {key: goldfarb2008, stream: 4, author: "Goldfarb Prince", title: "Internet adoption and usage patterns are different: Implications for the digital divide", year: 2008, why_needed: "Digital divide in adoption vs usage"}94- {key: haight2014, stream: 4, author: "Haight Quan-Haase Corbett", title: "Revisiting the digital divide in Canada: the impact of demographic factors on access to the internet, level of online activity, and social networking site usage", year: 2014, why_needed: "Canadian digital divide using CIUS"}95- {key: oecd2019, stream: 4, author: "OECD", title: "Unpacking E-commerce", year: 2019, why_needed: "E-commerce measurement and SME adoption (OECD report with DOI)"}96- {key: fellegi1969, stream: 5, author: "Fellegi Sunter", title: "A Theory for Record Linkage", year: 1969, why_needed: "Probabilistic record linkage theory for product matching"}97- {key: christen2012, stream: 5, author: "Christen", title: "Data Matching: Concepts and Techniques for Record Linkage, Entity Resolution, and Duplicate Detection", year: 2012, why_needed: "Matching methodology (book)"}98- {key: cavallo2017, stream: 5, author: "Cavallo", title: "Are Online and Offline Prices Similar? Evidence from Large Multi-channel Retailers", year: 2017, why_needed: "Online prices track offline prices in most countries"}99- {key: cavallo2018, stream: 5, author: "Cavallo", title: "Scraped Data and Sticky Prices", year: 2018, why_needed: "Properties of scraped online price data"}100- {key: cavallo2016, stream: 5, author: "Cavallo Rigobon", title: "The Billion Prices Project: Using Online Prices for Measurement and Research", year: 2016, why_needed: "Representativeness and uses of scraped prices"}101- {key: cavallo2014, stream: 5, author: "Cavallo Neiman Rigobon", title: "Currency Unions, Product Introductions, and the Real Exchange Rate", year: 2014, why_needed: "Online matched-product price dispersion across borders"}102- {key: cavallo2023, stream: 5, author: "Cavallo Kryvtsov", title: "What can stockouts tell us about inflation? Evidence from online micro data", year: 2023, why_needed: "Availability/stockout in online listings; listing is not transaction"}103- {key: gorodnichenko2017, stream: 5, author: "Gorodnichenko Talavera", title: "Price Setting in Online Markets: Basic Facts, International Comparisons, and Cross-Border Integration", year: 2017, why_needed: "Online price dispersion and cross-border integration"}104- {key: gorodnichenko2018, stream: 5, author: "Gorodnichenko Sheremirov Talavera", title: "Price Setting in Online Markets: Does IT Click?", year: 2018, why_needed: "Online price-setting facts on a shopping platform"}105- {key: kaplan2015, stream: 5, author: "Kaplan Menzio", title: "The Morphology of Price Dispersion", year: 2015, why_needed: "Decomposition of price dispersion (store vs good components)"}106- {key: kaplan2019, stream: 5, author: "Kaplan Menzio Rudanko Trachter", title: "Relative Price Dispersion: Evidence and Theory", year: 2019, why_needed: "Relative price dispersion is the main component"}107- {key: baye2004, stream: 5, author: "Baye Morgan Scholten", title: "Price Dispersion in the Small and in the Large: Evidence from an Internet Price Comparison Site", year: 2004, why_needed: "Persistent online price dispersion for identical goods"}108- {key: baye2006, stream: 5, author: "Baye Morgan Scholten", title: "Information, Search, and Price Dispersion", year: 2006, why_needed: "Survey of search and dispersion theory/evidence"}109- {key: brynjolfsson2000, stream: 5, author: "Brynjolfsson Smith", title: "Frictionless Commerce? A Comparison of Internet and Conventional Retailers", year: 2000, why_needed: "Online price dispersion persists; frictionless commerce test"}110- {key: clay2001, stream: 5, author: "Clay Krishnan Wolff", title: "Prices and Price Dispersion on the Web: Evidence from the Online Book Industry", year: 2001, why_needed: "Early online price dispersion evidence"}111- {key: rosen1974, stream: 5, author: "Rosen", title: "Hedonic Prices and Implicit Markets: Product Differentiation in Pure Competition", year: 1974, why_needed: "Hedonic framework"}112- {key: pakes2003, stream: 5, author: "Pakes", title: "A Reconsideration of Hedonic Price Indexes with an Application to PC's", year: 2003, why_needed: "Hedonic index with changing characteristics"}113- {key: bajari2005, stream: 5, author: "Bajari Benkard", title: "Demand Estimation with Heterogeneous Consumers and Unobserved Product Characteristics: A Hedonic Approach", year: 2005, why_needed: "Hedonic with unobserved characteristics; relevant to product FE"}114- {key: handbury2015, stream: 5, author: "Handbury Weinstein", title: "Goods Prices and Availability in Cities", year: 2015, why_needed: "Variety availability and price levels across cities with barcode data"}115- {key: handbury2021, stream: 5, author: "Handbury", title: "Are Poor Cities Cheap for Everyone? Non-Homotheticity and the Cost of Living Across U.S. Cities", year: 2021, why_needed: "Spatial price indices and variety"}116- {key: jaravel2019, stream: 5, author: "Jaravel", title: "The Unequal Gains from Product Innovations: Evidence from the U.S. Retail Sector", year: 2019, why_needed: "Product variety growth and demand"}117- {key: atkin2015, stream: 5, author: "Atkin Donaldson", title: "Who's Getting Globalized? The Size and Implications of Intra-national Trade Costs", year: 2015, why_needed: "Intra-national price gaps and distance using barcode prices"}118- {key: dellavigna2019, stream: 5, author: "DellaVigna Gentzkow", title: "Uniform Pricing in U.S. Retail Chains", year: 2019, why_needed: "Chains price uniformly across locations; interpretation of cross-merchant dispersion"}119- {key: konny2022, stream: 6, author: "Konny Williams Friedman", title: "Big Data in the U.S. Consumer Price Index", year: 2022, why_needed: "Web-scraped prices in official CPI"}120- {key: meng2018, stream: 6, author: "Meng", title: "Statistical paradises and paradoxes in big data (I): Law of large populations, big data paradox, and the 2016 US presidential election", year: 2018, why_needed: "Data defect correlation; non-random coverage of big data"}121- {key: bradley2021, stream: 6, author: "Bradley Kuriwaki Isakov Sejdinovic Meng Flaxman", title: "Unrepresentative big surveys significantly overestimated US vaccine uptake", year: 2021, why_needed: "Applied big-data paradox"}122- {key: groves2006, stream: 6, author: "Groves", title: "Nonresponse Rates and Nonresponse Bias in Household Surveys", year: 2006, why_needed: "Selection/nonresponse bias framework"}123- {key: little2019, stream: 6, author: "Little Rubin", title: "Statistical Analysis with Missing Data", year: 2019, why_needed: "Missing-data mechanisms (book)"}124- {key: heckman1979, stream: 6, author: "Heckman", title: "Sample Selection Bias as a Specification Error", year: 1979, why_needed: "Selection bias as specification error"}125- {key: elliott2017, stream: 6, author: "Elliott Valliant", title: "Inference for Nonprobability Samples", year: 2017, why_needed: "Inference from non-probability samples"}126- {key: buelens2018, stream: 6, author: "Buelens Burger van den Brakel", title: "Comparing Inference Methods for Non-probability Samples", year: 2018, why_needed: "Non-probability inference methods comparison"}127- {key: daas2015, stream: 6, author: "Daas Puts Buelens van den Hurk", title: "Big Data as a Source for Official Statistics", year: 2015, why_needed: "Big data in official statistics; selectivity"}128- {key: beaumont2020, stream: 6, author: "Beaumont", title: "Are probability surveys bound to disappear for the production of official statistics?", year: 2020, why_needed: "Statistics Canada view on non-probability data"}129- {key: lazer2014, stream: 6, author: "Lazer Kennedy King Vespignani", title: "The Parable of Google Flu: Traps in Big Data Analysis", year: 2014, why_needed: "Big data hubris and measurement drift"}130- {key: hausman2001, stream: 6, author: "Hausman", title: "Mismeasured Variables in Econometric Analysis: Problems from the Right and Problems from the Left", year: 2001, why_needed: "Measurement error in regressors/outcomes"}131- {key: bound2001, stream: 6, author: "Bound Brown Mathiowetz", title: "Measurement Error in Survey Data", year: 2001, why_needed: "Measurement error handbook chapter"}132- {key: rao2021, stream: 6, author: "Rao", title: "On Making Valid Inferences by Integrating Data from Surveys and Other Sources", year: 2021, why_needed: "Integrating non-probability and survey data"}133