Documents: https://www.cienciapr.org/sites/cienciapr.org/files/how-not-to-estimate-gdp-at-the-sub-state-level-the-usefulness-of-the-economic-census.pdf https://www.cienciapr.org/sites/cienciapr.org/files/referencias_web3_jose_caraballo_cueto_cienciapr.pdf