Portugal introduced a sugar-sweetened beverages (SSB) tax in 2017. This study uses unique administrative accounting data for all SSB producers/importers in Portugal, and an event study design with bottled water firms as the primary comparison group, to assess the causal impacts of the tax on...

I characterize the optimal linear commodity taxes when households differ in multiple characteristics, in presence of an optimal non-linear tax schedule on the households' labour incomes. The optimal distortions caused by a linear commodity tax are larger if, conditional on labour income, more...

This paper revives the question of whether a temporary VAT change is an adequate instrument for crisis stabilization. In empirical assessments, we find that durable goods consumption fluctuates strongly over the business cycle and that VAT rate changes affect durable goods in particular....

This paper examines whether investors react to consumption taxes. Despite the near global adoption of VAT policies, relatively little is known regarding the investor response to VAT changes. In an event-study setup, using a new dataset of daily equity returns and precise dates of tax policy...

Owing to the Fourth Industrial revolution and digital transformation, the digital economy has grown substantially globally and in Africa. Despite the positive outcomes such as advancements in technology, improvements in business models and expansion in digital financial inclusion, negative...