
ITO Research Roundup
Weekly summaries of recent studies and posts relevant for our work
Brought to you by Matt and Claude Code
📅 July 22, 2026
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Multinational Taxation
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Tax Evasion & Administration
- India’s 2017 GST, by granting input tax credits only for purchases from registered suppliers, drove formalization cascades upstream over five years, as large firms’ share of national GST collections fell from 46% to 30% and smaller enterprises entered the tax net. [SSRN 6213439 | PDF]
- Across Brazil, Colombia, Mexico, and Peru informality is an active response to fiscal incentives, and in a Mexico calibration the welfare-maximizing degree of income-tax progressivity is about five times the current near-flat level. [PDF]
- Retaliatory tariffs in the 2018 trade war cut compliance by 25 percentage points—each one-point tariff hike lowers compliance 1 to 2 points—costing roughly $3.5 billion in foregone tariff revenue in 2019. [CESifo WP 12643 | PDF]
- After automatic bank-information exchange took hold, Norwegians who grew wealthy became far less likely to shift money offshore, and the 7% tax-payment drop that once accompanied offshore transfers fell to under 1%. [NBER WP 35505 | PDF]
- Brazil’s 2023 VAT reform spreads the tax burden more evenly, but approved reduced rates aggravate regressivity while expanding the cashback could raise the poorest’s disposable income by 25%. [IMF WP 26/132 | PDF]
- A randomized trial with 3,551 Ethiopian business owners found letters stressing tax obligations raised reported profit tax declarations, but the effect did not differ between male and female owners at either the intensive or extensive margin. [World Bank WP 11409 | PDF]
- Automatic bank information exchange roughly doubled South Africans’ self-reported foreign income, yet around half stays hidden because the detection risk from non-compliance stayed modest—about a 1 percentage-point excess audit risk for the average account holder. [Oxford CBT WP 2026-02 | PDF]
- A randomized experiment with 1,006 married Japanese women near the 1.03 million yen earnings threshold found tax information raised stated planned earnings by 0.9% and intent to cross the threshold by 4.3%, yet produced no change in actual labor supply a year later. [TUPD 2026-009 | PDF]
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Illicit Financial Flows & Real Estate
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Tax & Environment
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Wealth Taxation
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Other Tax
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Methods
- A new axiomatically-derived inequality measure equal to the expected income ratio between two random individuals shows global inequality fell from about 5 in 1990 to 3.8 in 2024 as between-country gaps narrowed, while US inequality rose through widening within-state gaps.[Journal of Development Economics 2026 | PDF]
- A new switcher difference-in-differences estimator shows Finland’s size-based payroll tax notch cut treated firms’ employment, capital, and value added by about 10 percent and left 18 percent fewer firms above the threshold, effects conventional DiD misses entirely. [NBER WP 35484 | PDF]
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Other Economics
- Special economic zones across Viet Nam’s 63 provinces (2006–2020) boosted foreign-firm employment and revenues but shrank domestic private firms and worsened land access, transparency, and informal charges. [ADB Economics WP 848 | PDF]
- A sufficiently high risk of agents falling into extreme poverty makes wealth inequality generate asset bubbles, as households place near-infinite value on assets insulated from idiosyncratic risk—even under stationary wealth distributions and no aggregate uncertainty. [NBER WP 35393 | PDF]
- China’s Trans-Regional Jurisdiction reform, which moves administrative lawsuits to courts outside the defendant government’s home region, raised corporate investment by 28.7 percent by shielding judges from local political capture. [Journal of Development Economics | PDF]
- Across 259 Fortune 500 CEOs and two preregistered studies, narcissistic leaders resist remote work because it threatens their motivations for power and status, not because of concerns about firm performance. [OBHDP vol 195 | PDF]
- AI answer engines that divert publisher traffic and source-level quality signals without replacing them can push costly human information below replacement, collapsing open-web content even with truthful sources, accurate answers, and rational users.[NBER WP 35344 | PDF]
- Large-scale land acquisitions across 38 African countries raise local civic unrest 158%, driven by domestic elites capturing customary food-crop land, eroding traditional authority and boosting opposition votes and turnout. [PDF]
- About 80% of African VC deals involve a foreign investor and over 60% of funded founders studied or worked abroad, as scarce local equity capital tilts the startup ecosystem toward foreign-connected entrepreneurs. [NBER WP 35261 | PDF]
📅 June 15, 2026
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Multinational Taxation
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Tax Evasion & Administration
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Illicit Financial Flows & Real Estate
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Tax & Environment
📊
Other Tax
🔧
Methods
📅 June 01, 2026
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Tax Evasion & Administration
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Illicit Financial Flows & Real Estate
🌿
Tax & Environment
- Japan’s fuel-economy subsidy improved the fuel economy of vehicles sold in the US by 8.65%, so most of its CO2 reductions occur abroad through multinational “attribute propagation.”[PDF]
- China’s waste-import ban improved air and water quality but triggered a surge in smuggling, leaving a net welfare loss of $25.65 per tonne as environmental gains were offset by evasion and distortion costs. [CEP DP 2181 | PDF]
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Wealth Taxation
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Other Tax
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Methods
📌
Other Economics
📅 May 11, 2026
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Multinational Taxation
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Tax Evasion & Administration
💎
Wealth Taxation
📊
Other Tax
📅 May 04, 2026
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Tax Evasion & Administration
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Illicit Financial Flows & Real Estate
📊
Other Tax
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Methods
📅 April 27, 2026
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Multinational Taxation
🔍
Tax Evasion & Administration
- Randomly providing property tax education to Ghanaian taxpayers and officials raises knowledge and spreads through neighbour conversations, but ultimately has no impact on tax payments as taxpayers revise enforcement-capacity beliefs downward and learn legal ways to reduce their burden. [PDF]
- After tax evasion was publicly blamed for the 2010 Greek fiscal collapse and judges saw their salaries cut, the Supreme Court’s rejection rate for tax-evasion appeals rose 25 percentage points (a 43% jump) relative to homicide and rape appeals, with effects strongest in months of high public salience. [IZA DP 18489 | PDF]
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Illicit Financial Flows & Real Estate
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Other Tax
📌
Other Economics
📅 April 13, 2026
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Multinational Taxation
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Tax Evasion & Administration
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Illicit Financial Flows & Real Estate
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Tax & Environment
💎
Wealth Taxation
📊
Other Tax
🔧
Methods
- Analyzing 44,000 economics papers, Goldsmith-Pinkham finds that finance and macro lag applied micro by 15 years in adopting credibility revolution methods, with growth outside applied micro driven overwhelmingly by difference-in-differences while IV, RD, and RCTs see far less uptake.[NBER WP 35051 | PDF]
- New bounds on labor supply elasticities allowing for heterogeneity and income effects find that Norwegian self-employed have compensated elasticities at most 0.16 and uncompensated elasticities near zero, implying the excess burden of taxation is small. [NBER WP 35047 | PDF]
- The DiD Digest reviews four new papers showing that standard stacked DiD does not identify a clean causal average, discrete outcomes violate parallel trends, matched DiD inference requires new methods, and data-driven control selection can improve credibility, offering practical guidance for applied researchers.[DiD Digest | PDF]
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Other Economics
- The UK Home Secretary’s £10 billion migrant cost claim selectively combined three negative subgroups while omitting £47 billion in positive contributions from skilled workers, constructing migrants as a fiscal burden to justify restrictive settlement policy. [PDF]
- Vertically integrated US health insurers raised prices at their own pharmacies by 9.5% after Medicare profit caps were introduced, tunneling $1.2 billion in profits to unregulated subsidiaries—with the federal government bearing 21% of the inflated costs. [NBER WP 35043 | PDF]
- A Japanese survey finds an inverted U-shaped relationship between sleep duration and willingness to accept higher tax rates for redistribution, with optimal sleep producing the highest allowable tax rate, especially among high-income respondents. [PDF]
- A Finnish grant reform that exogenously shifted transfers across municipalities increased private sector jobs at a cost of €33,000 per job, with workers switching from commuting to working locally rather than migrating, suggesting fiscal transfers can support distressed areas without distorting residential choices. [AEJ | PDF]
- About half the gap in hours worked between Americans and non-Americans has reversed since the 1990s, with US hours declining mainly due to the rise of government health benefits—especially Medicaid—provided to the non-employed, while non-US countries saw hours rise from higher wages and falling disutility of work. [NBER WP 35020 | PDF]
- Germany’s mandatory executive gender quota increased female representation among top executives by two-thirds, primarily through outside recruitment, with no detectable effects on firm value, performance, or broader gender-equality policies. [NBER WP 35030 | PDF]
📅 March 30, 2026
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Multinational Taxation
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Tax Evasion & Administration
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Other Economics
📅 March 23, 2026
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Multinational Taxation
🔍
Tax Evasion & Administration
📅 March 16, 2026
🔍
Tax Evasion & Administration
- A randomized controlled trial in Gorontalo, Indonesia finds that soft-tone WhatsApp nudges emphasizing civic duty raised property tax compliance by 9.9 percentage points, with effects driven entirely by historically poor compliers and persisting six months after the intervention. [World Bank WP 11320 | PDF]
- Georgia’s 2021 Large Taxpayer Office raised annual tax assessments by 0.4–0.7% of GDP, concentrated in VAT and withholding taxes, by combining targeted enforcement with improved taxpayer services while making audits fewer but more selective. [IMF WP 26/31 | PDF]
- Using linked administrative tax records and a tailored survey of Uruguayan taxpayers, peer behavior is the strongest predictor of tax evasion, with economic factors also mattering, while social preferences (honesty, tax morale) have little predictive power. [IZA DP 18387 | PDF]
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Methods
📌
Other Economics
📅 March 09, 2026
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Multinational Taxation
🔍
Tax Evasion & Administration
- An IMF primer explains that over 70 developing economies collect less than 15% of GDP in tax revenue, but well-designed reforms could raise an additional 4–5 percentage points, as demonstrated by Jamaica, Rwanda, and Morocco.[IMF F&D | web]
- Machine learning audit targeting in Pakistan generates Rs 285,000 (~$2,800) net revenue per audit, while the real-world program lost Rs 173,000 (~$1,700) per audit—and targeting based on long-run deterrence outperforms targeting based on immediate revenue recovery. [Tulane WP 2603 | web]
- A JEL review argues that reforms to tax administration’s organizational structure, personnel management, and task management—complemented by efforts to build state legitimacy—can raise tax capacity in developing countries beyond what information trails alone achieve.[JEL 2026 | PDF]
- IMF microsimulations show that tax exemptions and fuel subsidies in Comoros are regressive, disproportionately benefiting higher-income households, highlighting the need for better-targeted redistribution. [IMF SIP 2026/016 | PDF]
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Tax & Environment
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Wealth Taxation
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Other Tax
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Methods
📅 February 23, 2026
🏢
Multinational Taxation
🔍
Tax Evasion & Administration
💎
Wealth Taxation
📊
Other Tax
🔧
Methods
📅 February 09, 2026
🏢
Multinational Taxation
- Panel data on 150 MNEs (2018-2023) shows tax-minimizing strategies boost firm value, but only firms with strong governance sustain the gains — tech firms face the highest regulatory risk from aggressive planning.[Public Finance | PDF]
- Vietnam experienced genuine trade reallocation rather than rerouting after US-China tariffs, increasing domestic value added in exports by up to 12pp, partly driven by Chinese firms relocating production via FDI. [CEPR VoxEU | web]
- New JRC top-down methodology estimates EU corporate income tax gaps ranging from below 3% to above 35% across member states, with an average gap of 10.9% (EUR 38 billion in 2017), concentrated in cash-intensive sectors. [Public Economics | PDF]
- Calibrated model shows the 15% global minimum tax induces tax havens to adopt split rates — taxing large MNEs at 15% while cutting rates for smaller firms — yielding 36bn in global revenue gains but concentrated in non-haven countries.[Public Finance | PDF]
- After ICIJ offshore data leaks, implicated firms appointed more directors in audit and finance roles, paid higher dividends, and reduced tax haven presence — without raising effective tax rates — in a net-positive reputational repair for shareholders.[CEPR | PDF]
- Quantitative model shows the 2017 US TCJA generated positive spillovers abroad (raising EU GDP by 0.2%), while a GMT adopted outside the US creates negative inward spillovers for the US even when American MNEs are exempt. [Public Economics | PDF]
- EU country-by-country reporting raised large multinationals’ effective tax rates by 1-2pp, reducing their consolidated sales by 5% and lowering industry concentration in sectors where top firms were affected. [Public Economics | PDF]
- Costa Rica’s elimination of tax holidays for new free-zone investors provides causal evidence that investment promotion agencies can sustain FDI inflows even after generous tax incentives are removed. [Journal of Development Economics | web]
- Chilean transfer pricing reform failed to reduce profit shifting or raise tax payments, but dramatically increased demand for transfer pricing consultants, illustrating how enforcement complexity benefits the advisory industry. [CEPR | PDF]
- Managers from countries with one SD more progressive gender norms reduce their team’s gender pay gap by 5pp (18%), primarily through higher promotion rates for women, with effects persisting after the manager rotates out.[NBER | PDF]
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Tax Evasion & Administration
- Centralizing tax audits in six Chinese provinces improved audit quality by reducing local influence, though at the cost of local knowledge. [NBER | web]
- Malthusian growth model shows early states’ tax capacity exhibits an inverted-U effect on population: moderate taxation funds productive public goods and drives expansion, but overtaxation leads to collapse and defeat by rival states.[Public Economics | PDF]
- Multiple tax audits in Uganda increase VAT liabilities by UGX 362 million among consistent filers, while single audits have no significant effect, highlighting the importance of repeat enforcement interactions. [Public Economics | PDF]
- Estimates Spain’s personal income tax gap for 2003-2022, finding evasion concentrated among self-employment and capital income with underreporting as the dominant form of noncompliance. [Informal & Underground Economics | PDF]
- Successful tax reform requires concurrent tax administration reform that goes beyond enforcement to include taxpayer services, trust-building, and new technologies.[Public Economics | PDF]
- Belgium’s 2016 payroll tax exemption for first hires sharply increased one-worker firms by 10%, but most new employers lacked the productivity to grow beyond a single employee. [Public Finance | PDF]
- Economists’ tax policy recommendations routinely fail politically because they ignore broadly defined distributional effects–who wins and who loses–that drive how people and their representatives vote.[Public Economics | PDF]
- Review synthesises evidence that tax administration reforms–organisational structure, personnel management, task design, and state legitimacy–can raise tax capacity in developing countries beyond what information trails alone achieve. [Manual | PDF]
- Panel data across four developing countries (2005-2023) shows higher effective tax rates reduce SME performance, while targeted tax incentives and quality public services promote formalisation and growth.[Informal & Underground Economics | PDF]
- Survey experiment with 1,200 respondents in Bangalore finds corruption cues reduce willingness to disclose tax evasion and shift preferences toward indirect taxation, even though tax morale itself remains unchanged. [Public Economics | PDF]
- U.S. teleworkers are more likely to move interstate and realize larger state tax savings from moves–up to 2,970 for top earners vs. ,566 for non-teleworkers–strengthening the case for residence-based income taxation. [Public Finance | PDF]
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Illicit Financial Flows & Real Estate
🌿
Tax & Environment
💎
Wealth Taxation
📊
Other Tax
- Regression discontinuity analysis of France’s salt tax and customs borders shows heavier indirect taxation drove pre-revolutionary unrest, peaking in the 1780s, and predicted deputies’ support for abolishing the monarchy. [NBER | PDF]
- Using the MVPF framework for Finland, top marginal income tax rates above 55% are self-defeatingly high, while VAT and inheritance taxes impose the least welfare cost per euro raised. [Public Finance | PDF]
- Incorporating loss aversion around institutional income thresholds into a Mirrlees optimal tax model raises optimal marginal rates globally and increases the optimal lump-sum transfer by 19-32% in U.S. calibrations. [Public Finance | PDF]
- Lithuania, Latvia, and Estonia imposed windfall profit taxes on banks after the 2022-2023 monetary tightening cycle, which rapidly boosted floating-rate loan income while deposit rates lagged, widening spreads by up to 2.8 percentage points above the euro area. [Public Economics | PDF]
- Examines informal fiscal systems in developing countries — non-state taxation and service provision — and their interaction with formal state institutions.[Journal of Development Economics | web]
- India invoked the UN’s existing statistical definition of illicit financial flows at convention negotiations, affirming that aggressive tax avoidance by multinationals qualifies and challenging OECD resistance to the term. [Tax Justice Network | web]
- Revenue instability in OECD countries owes more to the correlation structure among tax sources than to reliance on individually volatile taxes, with non-economic factors also playing a significant role.[Public Finance | PDF]
- Mobile money taxes can backfire by pushing users away from formal digital payments, undermining financial inclusion and reducing transaction volumes in developing economies.[VoxDev | web]
- Fuel tax pass-through in a large metropolitan city does not vary with the number of nearby competitors, suggesting the entire metro area functions as a single geographic market and challenging standard isodistance-based market definitions.[CEPR | PDF]
- Targeted payroll tax reductions have limited effects on employment and wages, suggesting that narrowly designed hiring subsidies may not achieve their intended labor market outcomes.[Economic Journal | web]
- A French survey experiment (N=12,600) finds that removing tax credits reduces charitable donations but not political ones, while government matching increases giving amounts but lowers the share of people who donate to charities. [CEPR | PDF]
- Ending sales tax exemptions on soda and candy across five US states reduced purchases only when tax hikes exceeded five percentage points, with stronger responses for soda than candy and effects that grew over time. [Public Economics | PDF]
- Irish income tax policy changes since 2011 have had notable fiscal and distributional implications, reshaping the system’s progressivity and revenue capacity. [Public Economics | web]
Generated 2026-07-22 15:12