A couple of thoughts...
1. Slavery's opportunity cost is essentially lost commerce. When you you whip in a food-heavy city (or any city, really) you are going to drop a food/commerce tile rather than a production tile.
2. Serfdom can be more useful if you plan for it. Save forests, only build one Worker prior to Serfdom, then undergo a "burst" of development before switching back to something else.
3. I think Serfdom is good as a short-term solution. For that reason, it may only be worth using if you're Spiritual.
There comes a point where my empire is so large that a humming economy is essential. Losing population in my capital and core cities means a fairly lengthy period of lost commerce which, in the long run, is hindering my expansion. Then there's the obvious loss of another laborer or specialist for that period, which may delay any number of other goals.
I think Slavery is attractive because of the immediate reward. When populations are low, the cost of Slavery is smaller since it takes less time to replace the population. But as you approach mid-game the cost gets higher.
Does all this justify a "Worker boom" under Serfodm in mid-game? I would say very rarely. Only in a specific situation might I use it. For example:
I'm a Spiritual civ, who's just taken a lot of jungle territory. There are some high-commerce and high-production tiles in my core that can contribute a lot of research/happiness/production over the next several turns. In the long run, clear-cutting the jungles and putting up cottages will pay off big time - the sooner the better.
1. Slavery's opportunity cost is essentially lost commerce. When you you whip in a food-heavy city (or any city, really) you are going to drop a food/commerce tile rather than a production tile.
2. Serfdom can be more useful if you plan for it. Save forests, only build one Worker prior to Serfdom, then undergo a "burst" of development before switching back to something else.
3. I think Serfdom is good as a short-term solution. For that reason, it may only be worth using if you're Spiritual.
There comes a point where my empire is so large that a humming economy is essential. Losing population in my capital and core cities means a fairly lengthy period of lost commerce which, in the long run, is hindering my expansion. Then there's the obvious loss of another laborer or specialist for that period, which may delay any number of other goals.
I think Slavery is attractive because of the immediate reward. When populations are low, the cost of Slavery is smaller since it takes less time to replace the population. But as you approach mid-game the cost gets higher.
Does all this justify a "Worker boom" under Serfodm in mid-game? I would say very rarely. Only in a specific situation might I use it. For example:
I'm a Spiritual civ, who's just taken a lot of jungle territory. There are some high-commerce and high-production tiles in my core that can contribute a lot of research/happiness/production over the next several turns. In the long run, clear-cutting the jungles and putting up cottages will pay off big time - the sooner the better.