{"id":198861,"date":"2026-07-26T05:48:11","date_gmt":"2026-07-26T13:48:11","guid":{"rendered":"https:\/\/lukeford.net\/blog\/?p=198861"},"modified":"2026-07-26T05:54:47","modified_gmt":"2026-07-26T13:54:47","slug":"what-are-the-live-questions-in-economics-now","status":"publish","type":"post","link":"https:\/\/lukeford.net\/blog\/?p=198861","title":{"rendered":"What are the Live Questions in Economics Now?"},"content":{"rendered":"

Written with AI: Tariff incidence<\/a> and the sequel to the ruling comes first. Who bears the cost, over what horizon, and what happens when a tax is removed. Gopinath<\/a> and Neiman<\/a> own the aggregate accounting<\/a>. Mary Amiti<\/a>, Stephen Redding<\/a>, and David Weinstein<\/a> own the border incidence estimates<\/a>. Alberto Cavallo<\/a> owns the high-frequency retail data<\/a>. Aaron Flaaen<\/a>, Ali Horta\u00e7su<\/a>, Felix Tintelnot<\/a>, Nicol\u00e1s Urdaneta, and Daniel Xu own the supply-chain decomposition<\/a>. The 2026 addition is refunds: the government collected at least $160 billion<\/a> in IEEPA<\/a> duties through February 20, and the majority opinion<\/a> says nothing about whether refunds will be available. A potential transfer of that size, with contested legal incidence, is an unclaimed research question.<\/p>\n

Second, the production function<\/a> for AI<\/a>. It contains labor displacement, firm productivity, aggregate productivity, and knowledge production. Erik Brynjolfsson<\/a>, Bharat Chandar<\/a>, and Ruyu Chen<\/a> own the entry-level finding. Humlum and Vestergaard<\/a> own the administrative-data nulls. Danielle Li and Lindsey Raymond<\/a> own the call-center evidence. Ethan Mollick<\/a> and Fabrizio Dell’Acqua<\/a> own the jagged-frontier framing. Chad Jones<\/a> and Anton Korinek<\/a> own the growth theory. The subordinate questions: whether AI substitutes for junior labor while complementing senior judgment, and whether removing junior work destroys the apprenticeship system that manufactures future experts.<\/p>\n

Third, r-star<\/a> and monetary-fiscal interaction. Reis<\/a>, Williams<\/a>, Atif Mian<\/a>, Ludwig Straub<\/a>, and Amir Sufi<\/a> are the names. The live question concerns which instrument carries the signal, and whether high debt changes the inflation cost of tightening.<\/p>\n

Fourth, fiscal capacity<\/a>, phrased without a threshold. What combination of debt service, maturity, primary deficits, and market absorption forces monetary policy or fiscal policy to yield.<\/p>\n

Fifth, fertility<\/a>. Claudia Goldin<\/a> (b. 1946) on the mismatch between women’s economic autonomy and men’s domestic adaptation<\/a>, Matthias Doepke<\/a> and Fabian Kindermann<\/a> on the household bargaining models, Melissa Kearney<\/a> and Phillip Levine<\/a> on the American decline<\/a>. Distinguish between postponement and lower completed fertility.<\/p>\n

Sixth, industrial policy<\/a> design. R\u00e9ka Juh\u00e1sz<\/a>, Nathan Lane<\/a>, and Rodrik<\/a> hold the field.<\/p>\n

Seventh, the inflation postmortem, phrased narrowly: under what market structures do sectoral supply shocks raise markups temporarily and propagate. Bernanke<\/a>, Blanchard<\/a>, Isabella Weber<\/a>, Emi Nakamura<\/a>, J\u00f3n Steinsson<\/a>, Laurence Ball<\/a>.<\/p>\n

Eighth, top-income measurement. Piketty<\/a>, Saez<\/a>, Zucman<\/a>, Auten<\/a>, Splinter<\/a>. The deeper question is whether distributional national accounts<\/a> can carry the political weight placed on them.<\/p>\n

Ninth, geoeconomic fragmentation<\/a>, which subsumes friendshoring<\/a>, export controls<\/a>, and critical minerals<\/a>. Laura Alfaro<\/a>, Davin Chor<\/a>, Kyle Handley<\/a>, Pinelopi Goldberg<\/a>.<\/p>\n

Tenth, China’s transition<\/a> away from property and investment-led growth. Kenneth Rogoff<\/a>, Zhiguo He<\/a>, Wei Xiong<\/a>, Chang-Tai Hsieh<\/a>. The answer moves commodity exporters, German manufacturing, global savings, and r-star<\/a>, which is why it ranks above several better-covered topics.<\/p>\n

Eleventh, housing, split into the three propositions the review document separates: whether supply moderates rents, whether upzoning produces housing, and whether reform delivers inside a political horizon. Ed Glaeser<\/a>, Joseph Gyourko<\/a>, Enrico Moretti<\/a>, Evan Mast<\/a>.<\/p>\n

Twelfth, private credit<\/a>, promoted from second tier. Where leverage and liquidity transformation migrated, how private funds connect to banks and insurers, and whether reported values conceal correlated losses until redemptions force recognition. Victoria Ivashina<\/a>, Gregor Matvos<\/a>, Jeremy Stein<\/a>.<\/p>\n

Thirteenth, remote work<\/a> and urban fiscal structure. Nicholas Bloom<\/a>, Steven Davis<\/a>, Jose Maria Barrero<\/a> on the labor side; Arpit Gupta<\/a> and Stijn Van Nieuwerburgh<\/a> on the office-value and municipal-revenue side.<\/p>\n

Fourteenth, the structure of the AI industry as distinct from its labor effects. Whether foundation models<\/a> are natural monopolies<\/a>, who captures the surplus, and how antitrust<\/a> treats vertical integration<\/a> across compute, models, and applications.<\/p>\n

Fifteenth, methods. How to combine local identification<\/a> with structural models<\/a> and explicit external-validity<\/a> tests, and whether LLM-generated synthetic respondents<\/a> can substitute for human samples. Guido Imbens<\/a> (b. 1963), Susan Athey<\/a>, Isaiah Andrews<\/a>, John Horton<\/a>.<\/p>\n

Then a second tier that could move up: climate adaptation<\/a> and insurance retreat, with Benjamin Keys<\/a> and Parinitha Sastry<\/a> on mortgage and insurance markets; GLP-1 drugs<\/a> and whether they pay for themselves; the minimum wage<\/a> at high bite, with Dube<\/a>, Reich<\/a>, Neumark<\/a>, and the automation<\/a> margin; stablecoins<\/a> and Treasury<\/a> demand; and the 2021-24 immigration surge<\/a> as an identification strategy.<\/p>\n","protected":false},"excerpt":{"rendered":"

Written with AI: Tariff incidence and the sequel to the ruling comes first. Who bears the cost, over what horizon, and what happens when a tax is removed. Gopinath and Neiman own the aggregate accounting. Mary Amiti, Stephen Redding, and … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[162],"tags":[],"class_list":["post-198861","post","type-post","status-publish","format-standard","hentry","category-economics"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t