What new economic factors and principles contributed to the success of europe's commercial revolution

1. The need for gold and silver made it lucrative to carry out trade with other countries
2.  Mercantilism  - The economic policy that emphasized the need of every nation to build as much wealth as  it can in order to gain power
3. Insurance companies became more formalized as risk mitigation started gaining priority. Laws were changed to deal with insurance issues
4. free trade policies. Governments became involved themselves in trade by grant royal trade monopolies.

The fact that farmers were paid for destroying crops.