This paper examines the optimal direction of marginal income tax reform in the context of New Zealand, which recently reduced its top marginal income tax rate to one of the lowest in the OECD. A behavioural microsimulation model is used, in which social welfare functions are defined in terms of...

The study applies a multi-sector multi-household static computable general equilibrium (CGE) tax model to assess the economy-wide impacts of taxes in Vietnam. It examines two tax reform scenarios based on the tax reform plan proposed by the Vietnam Ministry of Finance. The first scenario is...

Despite various reform efforts over the years, the tax system in the Philippines continues to suffer from chronic weaknesses. Tax rates are high relative to the country's ASEAN neighbors, yet revenue productivity remains low. Filipino individual taxpayers are overburdened by personal income tax...

The study assesses the impact of the first package of the Tax Reform for Acceleration and Inclusion (or TRAIN), which includes an increase in petroleum and coal excise taxes, passed by Congress in 2017. The study also reviews the context of the energy sector in the country given that petroleum...