@article {4376,
	title = {Is Europe an Optimal Political Area?},
	journal = {Brookings Papers on Economic Activity},
	year = {2017},
	pages = {169-234},
	url = {https://www.brookings.edu/bpea-articles/is-europe-an-optimal-political-area/},
	author = {Alesina, Alberto and Tabellini, Guido and Trebbi, Francesco}
}
