I still have a little time and I'd like to ask another question, if you don't mind.
What you are saying is very informative.
You've proposed a 15% tax on excess profits made by companies during the COVID‑19 crisis and during the financial crisis we're currently experiencing. The government promised that major grocery chains that made a profit will have to lower their prices. Failing that, a 15% tax could be imposed on them.
You advocate a 15% tax on excess profits. Do you think we should adopt this measure or make it voluntary?