PUERTO VALLARTA – On the second day of the World Economic Forum on Latin America, things were calming down after Tuesday when Spain's Mariano Rajoy had launched a heavy artillery attack against Argentina.

The verbal fireworks between Spain and Argentina has now subsided. And there are fewer people milling about the hallways, making it all that much trickier for me to find an Argentine participant prepared to comment on President Cristina Kirchner's controversial decision to nationalize the partly Spanish-owned oil company YPF. I can forget about tracking down anyone from Kirchner's staff – the funcionarios K, as they're called in Argentina. There are hardly any Argentine business leaders around either.

My question is whether the Spanish government's fierce reaction to the takeover is primarily based on the magnitude of the assets in question, the complicated place that Argentina occupies in the Spanish imagination or on the current economic crisis in Spain. After all, Repsol is not the first Spanish company that's been nationalized recently in Latin America. Hugo Chávez nationalized Banco Santander in Venezuela. Bolivia's Evo Morales seized control of Repsol's YPFB Andina, although he did so without completely taking it away from the company. But you Cristina?

But as much as I wander through the corridors, I don't hear any Argentine accents. Until suddenly, bingo! A member of the country's Jewish community who says he's Argentine – sort of. It turns out he's lived in Peru for the past 25 years. The man is cautious, but he does have an opinion. He says there are various factors that can explain YPF's nationalization, but the main reason is the influence of a member of the Economic Ministry who seems to have substantial policy sway -- and happens to hold the unorthodox view that businesses should not be allowed to generate more that 6% in profits. "And, well, to make that argument here...." he says, looking around without finishing his thought, as if someone might be listening.

The idea that he mentioned isn't completely unheard of. Hugo Chávez's economic minister has gone on record saying basically the same thing.

That's not, of course, the conventional way of thinking. Experience has shown that putting an "ethical" cap on profits is a great way to scare off investors and condemn countries to international ostracism. But maybe Cristina Kirchner was thinking of a "tailored" nationalization: one that's not based on anti-business or anti-foreigner ideology, but rather on anti-Spanish feelings. That would be a reason for the wound to sting that much worse in Madrid.

Read the original article in Spanish