This week, some prominent bloggers—Felix Salmon, Megan McArdle,  Matt Yglesias,  DCist's Sommer Mathis —are hammering at a curious urban quandary: why some storefronts remain vacant on bustling commercial strips.
Think U Street, in particular. Or 14th Street. Or whatever remains boarded up on H Street around the Atlas District, especially in a year or two since [...]