Determinants of international migrations to Italian provinces

International migration flows constitute one of the most policy-relevant elements of modern economies. The Italian experience is a case of particular interest given the rapid growth of immigration flows, the large number of countries of origin involved, and regional economic heterogeneity. This paper analyses the bilateral stocks of migrants coming from 142 countries and living in 103 Italian provinces to ascertain what characteristics of home countries and destination provinces are associated with international migrations. The results of the estimation of a gravity model on the stock of migrants show that economic, demographic and institutional variables are correlated with migration patterns. In light of the recent Arab Spring, it is interesting to note that migrants come to Italy predominantly from geographically close, democratic and middle-income countries.International migrations, Italy, Gravity model

Persistent fast growth and profitability

Working Paper Ircres-CNR 10/2020. Fast growth firms are a recent political objective given their impact on economic dynamics. Notwithstanding this, there is no unanimity in the literature on their determinants and impact and many aspects remain open questions. Several analyses consider growth and fast growth a random event, without possibility of prediction and policy action. This paper intends to contribute to the current large debate, looking at the characters of growth episodes (spell), type and persistence, and how they impact on firms’ profitability. We focus on a sample of medium-sized firms included in CHEETAH database, whose main characteristics is to have experienced at least one episode of fast growth, according to the OECD definition, in at least one of the cohorts of three years considered of 2008-2011, 2009-2012 and 2010-2013. We develop a descriptive analysis of how firms evolve over time from their starting level of turnover growth and the estimation of how different trajectories of growth (more persistent versus episodic) influence firm’s profitability through a panel regression. Our hypothesis that fast growth persistence makes a positive difference in terms of firms’ profitability is confirmed

Determinants of international migrations to Italian provinces

International migration flows constitute one of the most policy-relevant elements of modern economies. The Italian experience is a case of particular interest given the rapid growth of immigration flows, the large number of countries of origin involved, and regional economic heterogeneity. This paper analyses the bilateral stocks of migrants coming from 142 countries and living in 103 Italian provinces to ascertain what characteristics of home countries and destination provinces are associated with international migrations. The results of the estimation of a gravity model on the stock of migrants show that economic, demographic and institutional variables are correlated with migration patterns. In light of the recent Arab Spring, it is interesting to note that migrants come to Italy predominantly from geographically close, democratic and middle-income countries

Determinants of international migrations to Italian provinces

International migration flows constitute one of the most policy-relevant elements of modern economies. The Italian experience is a case of particular interest given the rapid growth of immigration flows, the large number of countries of origin involved, and regional economic heterogeneity. This paper analyses the bilateral stocks of migrants coming from 142 countries and living in 103 Italian provinces to ascertain what characteristics of home countries and destination provinces are associated with international migrations. The results of the estimation of a gravity model on the stock of migrants show that economic, demographic and institutional variables are correlated with migration patterns. In light of the recent Arab Spring, it is interesting to note that migrants come to Italy predominantly from geographically close, democratic and middle-income countries

Search for dark matter produced in association with bottom or top quarks in √s = 13 TeV pp collisions with the ATLAS detector

A search for weakly interacting massive particle dark matter produced in association with bottom or top quarks is presented. Final states containing third-generation quarks and miss- ing transverse momentum are considered. The analysis uses 36.1 fb−1 of proton–proton collision data recorded by the ATLAS experiment at √s = 13 TeV in 2015 and 2016. No significant excess of events above the estimated backgrounds is observed. The results are in- terpreted in the framework of simplified models of spin-0 dark-matter mediators. For colour- neutral spin-0 mediators produced in association with top quarks and decaying into a pair of dark-matter particles, mediator masses below 50 GeV are excluded assuming a dark-matter candidate mass of 1 GeV and unitary couplings. For scalar and pseudoscalar mediators produced in association with bottom quarks, the search sets limits on the production cross- section of 300 times the predicted rate for mediators with masses between 10 and 50 GeV and assuming a dark-matter mass of 1 GeV and unitary coupling. Constraints on colour- charged scalar simplified models are also presented. Assuming a dark-matter particle mass of 35 GeV, mediator particles with mass below 1.1 TeV are excluded for couplings yielding a dark-matter relic density consistent with measurements