Is Government Spending Shock More Effective in Financial Boom or During Recessions?

The primary objective of the present article is to study the impact of positive shocks in government expenditures during different financial periods on economic variables in Iran. To this end, first, financial condition index was created through principal components analysis. Then, using LR non-linear test and the data related to the period of 2005 to 2018, while studying non-linearity, the value of the variable threshold variable is estimated exogenously. Therefore, the value of the threshold of financial index is considered to be -0.36. Threshold Vector Autoregression Model (TVAR) with the assumption of the possibility of regime switching and generalized impulse-response functions are extracted to examine the impact of positive and negative shocks in government expenditures. Based on the results, the reaction of economic variables to positive shocks in government expenditures will be independent from financial periods whereas the reaction to negative shocks in government expenditures is influenced by financial periods, especially the period of recession. financial sector cannot improve real sector due to structural problems. increasing government authority, lack of competition space between public and private sector, allocating inefficient government spending have caused that financial sector cannot significant effect on economic real sector such as economic growth And in some cases we will see the negative impact of this sector.