Study abroad programmes and student outcomes: Evidence from Erasmus.

Exploiting admission thresholds for participating in Erasmus, the most popular higher education study abroad programme in Europe, we implement a regression discontinuity design and show that student mobility does not delay graduation and, in addition, has a positive and significant impact on the final graduation marks of undergraduate students. We find that Erasmus mobility improves graduation results for undergraduate students enrolled in scientific and technical fields and for those who apply in the first year of their studies, especially when enrolled in more demanding degree courses. Investigating plausible mechanisms, we find that the positive impact on performance at graduation is stronger for students who visit foreign universities of relatively lower quality compared to their home university. Finally, we do not find statistically significant effects of Erasmus mobility on postgraduate educational choices and labour market outcomes one year after graduation.

Can relief measures nudge compliance in a public health crisis? Evidence from a kinked fiscal policy rule.

We show that compensation measures aimed at improving the fairness of a crisis policy response can unintendedly nudge compliance with emergency rules. We combine information on the distribution of relief funds across Italian municipalities during the novel coronavirus pandemic with data tracking citizens' movements through mobile devices and navigation systems. To assess the impact of transfers on compliance, we exploit a sharp kink schedule in the allocation of funds. The empirical analysis provides evidence that compliance increased with transfers, suggesting that the observance of emergency rules also depends on the fairness of the pandemic policy response.

Perceived risk and vaccine hesitancy: Quasi-experimental evidence from Italy.

In March 2021, Italian health authorities suspended the Vaxzevria vaccine (VA) for 4 days over reports of very rare blood disorders among recipients. We exploit the quasi-experimental setting arising from this break to study the drivers of vaccine hesitancy. Before the suspension, the VA vaccination trend followed the same pattern as Pfizer-Biontech (PB). After the suspension, VA and PB injections started to diverge, with VA daily decreasing by almost 60 doses per 100,000 inhabitants for the following 3 weeks. The resulting vaccination rate was 60 percent lower than the value that would have stemmed from the VA pre-suspension pattern. We show that the slowdown was weaker and less persistent in regions with higher COVID penetration and steadier and more pronounced in regions displaying greater attention to vaccine side effects as detected through Google searches. The public's interest in vaccine adverse events negatively correlates with COVID cases and deaths across regions.

A babel of web-searches: Googling unemployment during the pandemic.

Researchers are increasingly exploiting web-searches to study phenomena for which timely and high-frequency data are not readily available. We propose a data-driven procedure which, exploiting machine learning techniques, solves the issue of identifying the list of queries linked to the phenomenon of interest, even in a cross-country setting. Queries are then aggregated in an indicator which can be used for causal inference. We apply this procedure to construct a search-based unemployment index and study the effect of lock-downs during the first wave of the covid-19 pandemic. In a Difference-in-Differences analysis, we show that the indicator rose significantly and persistently in the aftermath of lock-downs. This is not the case when using unprocessed (raw) web search data, which might return a partial figure of the labour market dynamics following lock-downs.

Does postponing minimum retirement age improve healthy behaviors before retirement? Evidence from middle-aged Italian workers.

By increasing the residual working horizon of employed individuals, pension reforms that rise minimum retirement age can affect individual investment in health-promoting behaviors before retirement. Using the expected increase in minimum retirement age induced by a 2004 Italian pension reform and a difference-in-differences research design, we show that middle-aged Italian males affected by the reform reacted to the longer working horizon by increasing regular exercise, with positive consequences for obesity and self-reported satisfaction with health.