The Euro-Area Government Spending Multiplier at the Effective Lower Bound
Adalgiso Amendola, Mario Di Serio, Matteo Fragetta, Giovanni Melina
European Economic Review, vol. 127, 2020, p. .

The Government Spending Multiplier at the Zero Lower Bound: Evidence from the United States
Mario Di Serio, Matteo Fragetta, Emanuel Gasteiger
Oxford Bulletin of Economics and Statistics, vol. 82, 2020, p. 1262-1294.