Fiscal imbalance is a mismatch in the revenue powers and expenditure responsibilities of a government. In the literature on fiscal federalism, two types of fiscal imbalances are measured: Vertical Fiscal Imbalance and Horizontal Fiscal Imbalance. When the fiscal imbalance is measured between the two levels of government (Center and States or Provinces) it is called Vertical Fiscal Imbalance. When the fiscal imbalance is measured between the governments at the same level it is called Horizontal Fiscal imbalance. This imbalance is also known as regional disparity.