TY - BOOK AU - Almunia,Miguel AU - Hjort,Jonas AU - Knebelmann,Justine AU - Tian,Lin ED - National Bureau of Economic Research. TI - Strategic or Confused Firms? Evidence from "Missing" Transactions in Uganda T2 - NBER working paper series PY - 2021/// CY - Cambridge, Mass. PB - National Bureau of Economic Research N1 - July 2021; Hardcopy version available to institutional subscribers N2 - Are firms sophisticated maximizers, or do they consistently make errors? Using transaction-level data from Ugandan value-added tax (VAT) returns, we show that sellers and buyers report different amounts 79% of the time, despite invoices being easily cross-checked. We estimate that 25% of firms are disadvantageous misreporters--they systematically misreport own sales and purchases such that their tax liability increases--while 75% are advantageous misreporters. Many firms--especially disadvantageous misreporters--fail to report imported inputs they themselves reported at Customs, increasing their VAT liability. On net, unilateral VAT misreporting cost Uganda about US$384 million in foregone 2013-2016 tax revenue UR - https://www.nber.org/papers/w29059 UR - http://dx.doi.org/10.3386/w29059 ER -