Cash processing has evolved from a labor intensive activity focused on the transportation of cash to a capital-intensive industry offering end-to end solutions.
The idea focuses on local resources rather than capital-intensive municipal programs and promotes the idea of citizens installing and caring for interventions.
The resulting theorem states that, on those assumptions, a country with a relative abundance of capital would export capital-intensive products and import labour-intensive products.
In particular, many developing countries lack the capital-intensive infrastructure to develop and support the hi-technology plastic molding machinery necessary to produce the returnable trays.