Normally it's easier just to copy previous successes. South Korea after WW2, Japan after WW2, America back when the economy was growing at a sustained 10%. Whatever the features of those cultures are, just copy it.
The answer to corruption is always the same: shrink the power of the government, so there's less incentive. A businessman should only have to think about his business and act accordingly, he shouldn't have to think about who's palms he has to grease to stop them getting in his way.
I'd also install a mixed constitution. If you look at time preference statistics, east europe has some pretty bad rankings. Very high (short term) preferences, probably an aftermath of communism where you had to take and consume everything you could get or someone else would take it from you. This will fade, but democracy is only a step up from this. The presence of hereditary nobels and king would reorientate the country towards long-term, low time preference thinking, which is where capital and thus wealth comes from.
The answer to corruption is always the same: shrink the power of the government, so there's less incentive. A businessman should only have to think about his business and act accordingly, he shouldn't have to think about who's palms he has to grease to stop them getting in his way.
I'd also install a mixed constitution. If you look at time preference statistics, east europe has some pretty bad rankings. Very high (short term) preferences, probably an aftermath of communism where you had to take and consume everything you could get or someone else would take it from you. This will fade, but democracy is only a step up from this. The presence of hereditary nobels and king would reorientate the country towards long-term, low time preference thinking, which is where capital and thus wealth comes from.