Tax systems worldwide face far-reaching transformations through the implementation of digital technologies. A growing body of academic literature addresses these transformations and explores how digitalisation is affecting the operations and efficiency of revenue agencies, and taxpayer...

The Global Tax Expenditures Database (https://GTED.net/) collects national reports on tax expenditures for 101 countries for the period from 1990 to the present. Based on these data, the development of tax expenditures in the 38 OECD countries between 1999 and today is examined. A look at the...

While cities are important emitters of greenhouse gases (GHG), they are also vulnerable to the impacts of climate change; at the same time they constitute innovation hubs for climate action. For cities to fulfil their potential for global climate action, a thorough understanding of the governance...