More recently an increasing number of revenue authorities have attempted to estimate the amount of tax that is legally owing to their government but not collected. This amount is commonly referred to as ‘tax gap’. In the past tax gap studies were branded unreliable. Tax administrations and...

Equalisation grants can affect a state's fiscal behaviour because its tax policies can affect the size of its grant. For a large state, an increase in its tax rate will increase the standard tax rate used to calculate the grant for that base and thereby reduce (increase) the state's grant if it...

Consumption taxes are only rarely assessed for their impact on the economic well-being of individuals. This paper reviews various studies on this issue. It first describes the large differences in the size and structure of these taxes among OECD countries, and then reviews the types of...