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Posts by Katarzyna Bilicka

Figure shows how across the 16 countries in the sample, estimated elasticities range from 0.075 to 1.9, with an average of roughly 0.79. This implies that a 10% increase in the net-of-tax rate raises reported taxable income by around 8% on average.

Debates on corporate taxation hinge crucially on how firms respond to changing tax incentives. This column uses administrative tax data from 16 countries and a unified empirical framework to estimate corporate taxable income elasticities. It shows that the responsiveness of corporate taxable income varies widely across economies, and there are large differences in efficiency costs of corporate taxation as well. The differences are linked to tax system design, firm characteristics, and economic fundamentals. The results imply that identical tax reforms can produce very different revenue and efficiency outcomes.

Figure shows how across the 16 countries in the sample, estimated elasticities range from 0.075 to 1.9, with an average of roughly 0.79. This implies that a 10% increase in the net-of-tax rate raises reported taxable income by around 8% on average. Debates on corporate taxation hinge crucially on how firms respond to changing tax incentives. This column uses administrative tax data from 16 countries and a unified empirical framework to estimate corporate taxable income elasticities. It shows that the responsiveness of corporate taxable income varies widely across economies, and there are large differences in efficiency costs of corporate taxation as well. The differences are linked to tax system design, firm characteristics, and economic fundamentals. The results imply that identical tax reforms can produce very different revenue and efficiency outcomes.

@katarzynabilicka.bsky.social, E Patel & N Seegert show the responsiveness of corporate taxable income varies widely across economies, w/ large differences in efficiency costs of corporate taxation. Identical reforms can produce very different revenue/efficiency outcomes.
ow.ly/gThO50YFtkr
#EconSky

2 weeks ago 4 3 0 0

The #IIPF2026 Call for Papers is out!
👉 www.iipf.org/papers/Call%...
Submit your public finance paper by Feb. 15, 2026.

Further information on the congress at www.iseg.ulisboa.pt/en/event/iipf/

Organizers at ISEG 👇 and Scientific Chairs Naomi Feldman and @dforemny.bsky.social

#EconConf #EconSky

4 months ago 8 10 2 2
Graph of the impact of global minimum tax at varying threshold rates on welfare

The global minimum tax represents the most ambitious international effort in decades to curb profit shifting to tax havens. But how much profit shifting actually occurs, and how is it affected by taxation? This column argues that ignoring the large number of multinationals that shift all their profits out of high-tax countries understates the true scale of profit shifting by roughly half, and revenue projections based solely on responses to tax rate changes by partial shifters are too conservative. Profit shifting doesn't just affect tax revenues – it fundamentally alters investment incentives, creating fundamental trade-offs that cannot be ignored.

Graph of the impact of global minimum tax at varying threshold rates on welfare The global minimum tax represents the most ambitious international effort in decades to curb profit shifting to tax havens. But how much profit shifting actually occurs, and how is it affected by taxation? This column argues that ignoring the large number of multinationals that shift all their profits out of high-tax countries understates the true scale of profit shifting by roughly half, and revenue projections based solely on responses to tax rate changes by partial shifters are too conservative. Profit shifting doesn't just affect tax revenues – it fundamentally alters investment incentives, creating fundamental trade-offs that cannot be ignored.

@katarzynabilicka.bsky.social, Michael P Devereux, & Irem Güçeri argue that the scale of profit shifting from high-tax to low-tax jurisdictions may be larger than many firm-level studies suggest - perhaps twice as large.
cepr.org/voxeu/column...
#EconSky

4 months ago 5 6 1 0
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7 months ago 3 0 1 0
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Last week, we kicked off the 2025 ISEG Summer School with a course on "Businesses' Responses to Tax Policies" with @katarzynabilicka.bsky.social. Thank you all for coming to Lisbon!

9 months ago 5 2 0 0
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We're hiring an Associate Director in our Tax sector who will lead a programme of research on UK tax policy and join our management team.

📅 Find out more and apply by 11:59pm, Fri 13 June 2025: app.beapplied.com/apply/xnqss4...

11 months ago 3 4 0 1

Do firms walk the talk on tax transparency?


The new Journal of Accounting Research paper by #trr266 research fellow @elisacasi.bsky.social , Carol Seregni & Barbara Stage and their co-author @katarzynabilicka.bsky.social looks at the UK tax strategy disclosure mandate. They find…

11 months ago 4 2 1 0

Sign up, if you haven’t yet! It’ll be tons of fun.

1 year ago 2 0 0 0

ONE MONTH to benefit from the early bird fee for the 2025 ISEG Summer School in Economics that will take place this July in Lisbon🔆

@katarzynabilicka.bsky.social, Nagore Iriberri, @essobecker.bsky.social, and Pedro Bordalo

www.iseg.ulisboa.pt/en/event/ise...

📢Please share it #EconSky

1 year ago 5 5 0 2
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Excited to serve another term as Editor-in-chief of @itaxjournal.bsky.social with this new fantastic team!

1 year ago 7 2 0 0
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ISEG Summer School 2025 ISEG is hosting again the "ISEG Summer School", a 12-hour program open to the world. As the oldest school of Economics in Portugal, ISEG offers a solid and plural academic environment to critically en...

📅Join us for the 2025 ISEG Summer School in Economics that will take place this July in the beautiful city of Lisbon🔆

@katarzynabilicka.bsky.social, Nagore Iriberri, @essobecker.bsky.social, and Pedro Bordalo will be our lecturers.

iseg.ulisboa.pt/en/event/ise...

📢Please share it #EconSky

1 year ago 9 8 0 1

Wojtek said it all!

1 year ago 7 1 0 0

Coincidentally, the Polish take over of the profession is under way.

1 year ago 20 1 0 1

@itaxjournal.bsky.social is on Bluesky! Everyone on #Econsky should follow for updates on recently published papers!

1 year ago 12 3 0 0
CEPR Public Economics Annual Symposium 2025 PDF document / 207.07 KB

Submit your papers to the next @cepr.org Public Economics Annual Symposium, taking place in Cologne on June 5-6, 2025. Co-organized with @sigginho.bsky.social and Johannes Spinnewijn, keynotes by Cecile Gaubert and @omzidar.bsky.social!

cepr.org/events/cepr-...

1 year ago 74 28 6 1
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New theory and empirical work from @katarzynabilicka.bsky.social , Mike Devereux & İrem Güçeri on MNE profit shifting responses to domestic tax rates 🏝️⛴️⬅️💂‍♂️
www.nber.org/system/files...

1 year ago 4 3 1 0
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