Beware I am going to rant.
productivity is a very hard subject. It is hard to measure, it is hard to see in data and sometimes the data goes against your own biases.
Measuring it is very hard and in certain sectors it is impossible particularly in the non-market sector. How do you measure productivity of a doctor, teacher, nurse etc.
Generally most people agree multi-factor productivity is the way to go BUT it aint timely!
Firstly if I go to my Marxist hat the people who have responsibility for raising productivity are capitalists. If they do not p[rofits should fall IF they are in a competitive sector. This means competition policy should be top of the heap for any government. Micro-economics trumps everything in other words.
However if we go back into the past we find problems. A long time ago Roger Douglas was the Treasurer in New Zealand and introduced a lot of micro-economic reform. However as John Quiggin pointed out at the time Australian productivity was superior to New Zealand's. This did not compute. Related to this is way back in the 80s it was found productivity was superior in European nations with highly regulated labour markets than in counties that had flexible labour markets. We have found productivity has gone the wrong way as we gained a much more flexible labour marker.
holy confusion batman.
There are a lot of words written on this topic but we still have no real idea of why it increased and why it stopped in Australia