How can the Government intervene via Progressive Taxation help tackle Poverty

-PT means a Bigger % of tax comes from Workers with Higher Incomes than those with Lower Incomes. This Reduces the Difference between People's Disposable Income, reducing Relative Poverty -PT though can Contribute to the Poverty Trap. Furthermore, if High Income Earners are Taxed too much, they move to another Nation where they're taxed less. This results in a Loss of Labour and Money from the Economy