
Paul Romer, a Nobel laureate in economics, believes that a key factor in the success of urban agglomerations is a clear definition of public and private space before the construction of a neighborhood or city begins.
The author illustrates the success of this strategy with a classic case: the New York street grid. Long before Manhattan Island was physically developed with streets or buildings, the Commissioners' Plan was established in 1807, outlining the gridiron of public and private spaces that would define the city's future.























