Hernandez, MarcoJamison, JulianKorczyc, EwaMazar, NinaSormani, RobertoThe World Bank2021-07-072021-07-072017Marco Hernandez, Julian Jamison, Ewa Korczyc, Nina Mazar, Roberto Sormani. "Nudging to increase income tax payments in Poland (field experiment).."https://hdl.handle.net/2144/42730en-UShttp://creativecommons.org/licenses/by/3.0/. © 2017 International Bank for Reconstruction and Development / The World Bank. This work is available under the Creative Commons Attribution 3.0 IGO license (CC BY 3.0 IGO) https://creativecommons.org/licenses/by/3.0/igo/. Under the Creative Commons Attribution license, you are free to copy, distribute, transmit, and adapt this work, including for commercial purposes, under the following conditions: Translations - If you create a translation of this work, please add the following disclaimer along with the attribution: This translation is an adaptation of an original work by The World Bank and should not be considered an official World Bank translation. The World Bank shall not be liable for any content or error in this translation. Adaptation – If you create an adaptation of this work, please add the following disclaimer along with the attribution: This is an adaptation of an original work by The World Bank. Views and opinions expressed in the adaptation are the sole responsibility of the authors of the adaptation and are not endorsed by The World Bank.Article598532