How does income distribution affect the impact of public investment on private investment? Empirical evidence from Brazil
This paper investigates the relationship between private and public investments in Brazil. By estimating a linear Vector Autoregressive Model (VAR) for 1996–2022, we find a crowding-in effect: an increase of 10% in public investment generates a 1.48% and 2.5% rise in private investment after one and four quarters, respectively. To investigate the role of income distribution in this result, we employ a Threshold Vector Autoregressive Model (TVAR). We find the crowding-in effect only occurs in the relatively low-income inequality regime: a 10% increase in public investment results in a 0.8% and 3.4% increase in private investment after one and four quarters, respectively. Conversely, in the relatively high-inequality scenario, the response is not statistically different from zero. Thus, from a macroeconomic standpoint, diminishing inequality holds the potential to enhance the responsiveness of private investment to public investment.
Keywords: Public investment. Private investment. Income Inequality. TVAR. Crowding-in effect.
JEL: C32, E22, E25, H54
