How does the worlds reliance on the dollar help US firms trade and invest around the world?

From the standpoint of your country, do the pros of the exorbitant privilege of the dollar outweigh its cons?

ON ETHICS: The more we condition the use of the dollar and our financial system on adherence to US foreign policy, the more the risk of migration to other currencies and other financial systems in the medium term grows, according to Jacob Lew, treasury secretary during the Obama administration. If you were the current US treasury secretary or CEO of Citigroup, how would you advise the US president on this sensitive issue?