ABSTRACTWe Metric Locking Headers estimate the link between population density and labour productivity at the city level.An exogenous change in the agglomeration of some cities that occurred in Italy during the fascist dictatorship allows us to instrument the agglomeration proxy.We find evidence of a causal impact of density on productivity for the
This study questions selected behavioural aspects of travellers belonging to different religious beliefs during their religious heritage site visits.Tourist behaviour needs to be analysed in specific circumstances.This study aims to clarify Boot Jacks in situ problems experienced by religious tourists, behavioural differences of tourists with diffe
Among social parasites, workerless inquilines VEG ESSENTIAL NAT entirely depend on their host for survival and reproduction.They are usually close phylogenetic relatives of their host, which raises important questions about their evolutionary history and mechanisms of speciation at play.Here we present new findings on Ectatomma parasiticum, the onl