Business accelerators like Y Combinator and TechStars have come to occupy a critical geography in the tech landscape, and today two professors are announcing the results of their survey to determine which ones have come out on top at South By Southwest.

“The goal of the seed accelerator rankings project is to start a larger conversation about the accelerator phenomenon, its effects and its prospects for the future,” according to a presentation by Professor Yael Hochberg, a faculty member at the MIT Sloan School of Management.

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