Social capability and economic growth Documentation for socdev.csv This data set, when combined with the Mankiw-Romer-Weil data, should allow replication of the main results in the paper. If you replicate the results, or have trouble doing so, please let me know. A more complete version of the data set will be released in due course. The variables are as follows: MRWNO The identifier given to each country by Mankiw, Romer and Weil (1992) (MRW). SOCDEV The Adelman-Morris (1967) social development index. COMMS The Adelman-Morris (1967) communications index.