Este documento de trabajo supone una contribución a la literatura reciente que documenta el aumento secular de los márgenes ponderados por las ventas en varios países. En Estados Unidos, este fenómeno ha sido impulsado por empresas grandes y productivas. Utilizando los datos detallados de la...

Summary of Banco de España Working Paper no. 2033

In many regions of the U.S., low dissolved oxygen (DO) is a common freshwater impairment. States, territories, and tribes of the U.S. are required by federal law to develop Total Maximum Daily Loads (TMDLs) for waters not meeting established DO standards. Regulators and other professionals are...

Although the U.S. Congress established the Total Maximum Daily Load (TMDL) program in the original Clean Water Act of 1972, Section 303(d), it did not receive attention until the 1990s. Currently, two methods are available for tracking pollution in the environment and assessing the effectiveness...