Fig. 4

Copula C(u1,u2) for 1/t and s, where t is the time it takes to go from one LSOA to another using public transport, and s is the cosine similarity between their industrial sectors defined by the SIC codes of their firms. London, 2007. Left: density function; right: histogram of the joint cumulative probabilities p_ij between LSOAs i and j defined by the copula