In a knowledge economy, there's no "equal work". There are no two programmers that actually do the same work or that have the same job (similar ones yes, even

In a knowledge economy, there's no "equal work". There are no two programmers that actually do the same work or that have the same job (similar ones yes, even substitutable, but not the same). That works only for reasonably repetitive tasks with well defined boundaries, such as an assembly line worker.