In 1.8, a hybrid economy of sorts was possible using command economy plus companies: the companies could still reinvest, so you could state own everything except a few select industries that you gave to companies, and the only autonomous investment would be within their allowed industries. This wasn't a top tier way to be in 1.8 but at least you could sort of do it.
In 1.9, ownership on companies was changed such that under command economy your capitalists are replaced by bureaucrats. I think this was unwise. Bureaucrats don't invest. Accordingly, in 1.9 once you enact command economy your companies continue to exist but can never again build another building because you have 0 reinvestment. This (unintended?) nerf takes command economy out of the mid-but-at-least-something-you-can-play-around-with level to being unplayably bad.
My suggestions:
1. Enable privatization under command economy, but only allow the country's player's companies to buy buildings put up for privatization, and set the name on the privatize button to be 'Transfer to companies' instead of 'Privatization' if in command economy and update the tooltip text accordingly; and,
2. Put a '+x% Bureaucrats and clerks in company headquarters Investment Pool contribution' modifier on the command economy law
In 1.9, ownership on companies was changed such that under command economy your capitalists are replaced by bureaucrats. I think this was unwise. Bureaucrats don't invest. Accordingly, in 1.9 once you enact command economy your companies continue to exist but can never again build another building because you have 0 reinvestment. This (unintended?) nerf takes command economy out of the mid-but-at-least-something-you-can-play-around-with level to being unplayably bad.
My suggestions:
1. Enable privatization under command economy, but only allow the country's player's companies to buy buildings put up for privatization, and set the name on the privatize button to be 'Transfer to companies' instead of 'Privatization' if in command economy and update the tooltip text accordingly; and,
2. Put a '+x% Bureaucrats and clerks in company headquarters Investment Pool contribution' modifier on the command economy law