Fiscal policy is NOT often used as a stabilisation tool. However, it does have important roles in the economy. Three of these roles are:

1. Income Redistribution: Fiscal policy can be used to redistribute income within a society. This is done through taxation and government spending. For example, progressive taxation, where the tax rate increases as the taxable amount increases, can be used to redistribute wealth from the rich to the poor. Similarly, government spending on social welfare programs can also help to redistribute income.

2. Economic Stabilization: While fiscal policy may not be often used as a stabilization tool, it does play a role in stabilizing the economy. During a recession, the government can increase spending or decrease taxes to stimulate the economy. Conversely, during an economic boom, the government can decrease spending or increase taxes to prevent the economy from overheating.

3. Promoting Economic Growth: Fiscal policy can also be used to promote long-term economic growth. This can be done through government spending on infrastructure, education, and research and development. These investments can increase the productive capacity of the economy and lead to long-term economic growth.

Remember, the effectiveness of fiscal policy can be influenced by a variety of factors, including the timing of the policy, the state of the economy, and how the policy is implemented.