There are strong arguments in favour of special taxes where economic rents exist, as is usually the case with non-renewable resources.

ECONOMIST: Tax and smoke

Reliance on groundwater however is highly problematic as the exploitation of non-renewable groundwater resources and aquifers are irreversible and difficult to monitor.

UNESCO: OFFICE IN AMMAN

More than any other Latin American country, the tax system has become dependent on resources derived from the exploitation of its non-renewable commodities.10 Chavez' tax reforms have furthered this dependency.

CENTERFORSECURITYPOLICY: Venezuelan oil bonanza

Those considered to be strategic sectors are the energy sector in all its forms, non-renewable natural resources, transport, hydrocarbons, mining, bio-diversity, water and other sectors that the law may determine.

CENTERFORSECURITYPOLICY: Chavez��s repression continues