@article {4289,
	title = {Segmentation Versus Agglomeration: Competition Between Platforms with Competitive Sellers},
	journal = {CEPR Discussion Paper },
	year = {2017},
	url = {https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3071067},
	author = {Karle, Heiko and Peitz, Martin and Reisinger, Markus}
}
