CONNIFFE, Denis; GASH, Vanessa; O'CONNELL, Philip J. Evaluating State Programmes: “Natural Experiments” and Propensity Scores. The Economic and Social Review, [S. l.], v. 31, n. 4, October, p. 283–308, 2026. Disponível em: https://esr.ie/index.php/esr/article/view/3726. Acesso em: 2 oct. 2026.