Under the H1-B Visa program, we are allowed to import workers with skills that cannot be found in the U.S.
mbs
Productivity is hard to measure? I don't think so. We have a number of measures, which approximate it, such as increased yields. The most obvious is that since the high point of 732 million hectares farmed for grain globally in 1981, there has been a systematic retiring of land from production to avoid surplus capacity. Today grain farming covers just 690 million hectares.