This paper explores the revenue-raising aspect of progressive taxation and derives, on the basis of a simple model, the optimal degree of tax progressivity where the tax revenue is used exclusively to finance (perfectly) targeted transfers to the poor. The paper shows that not only would it be...

This paper explores the implications of a distinctive feature of the value added tax (VAT) that is stressed by practitioners but essentially ignored by theorists: that it functions, in part, as a tax on the purchases of informal operators from formal sector businesses and, not least, on their...

Why do governments issue large amounts of debt? In what sense and for whom is such a policy optimal? We show that twisting the optimal taxation paradigm produces very reasonable predictions for debt and real interest rates. Adding an extra dimension of uncertainty about the political planning...

When inflation originates from distributional conflicts, shifts in inflation expectations, or energy price shocks, monetary policy (MP) is a costly stabilization instrument. We show that a tax on inflation policy (TIP), which would require firms to pay a tax proportional to the increase in their...

Despite achieving a rapid reduction in the public debt-to-GDP ratio in recent years, Portugal's debt ratio remains relatively high at 113.9 percent of GDP in end-2022. This paper employs an analytical model to determine the appropriate trajectory for structural consolidation to sustain ambitious...

In-work support through the tax-benefit system has proved to be an effective way of increasing the labor supply of lone mothers and first earners in couples in a number of OECD countries. At the same time, these instruments usually create negative employment incentives for secondary earners....

The tax system forms the backbone to the functioning of the South African fiscal authorities and it is has been recently questioned whether alterations in the existing tax mix could promote economic growth. Using quarterly data from 1990:Q1 and 2015:Q2, this study investigated the effects of...