The "nationalisation" of the Spanish oil company, Repsol's Argentinian assets on grounds that are frankly nonsensical confirms this. It has been known for a few years that the Argentinian government under Christina and her late unlamented husband Nestor has been corrupt and cooking the books (they actually to criminalise economists who calculate the inflation rate honestly).
In other words they are headed for another financial crisis less that 15 years after the last one.
Some countries have undergone a bigger relative decline that Argentina in the last 100 years- but these have mostly been nations that have been under the boot of crazed ideologies like communism. Argentina's unique achievement is to have achieved the same level of decline under mostly democratic rule.
A clue to why this happens is listening to reports about Argentinian election candidates- it's soon obvious that most of the contenders describe themselves as "Peronist".Unfortunately Juan Peron was an ideological charlatan with no fixed beliefs beyond the idea that he should be in charge. Wikipedia describes Peronism as:
The pillars of the Peronist ideal, known as the "three flags", include: Social justice, Economic Independence, and Political Sovereignty.
- Social Justice AKA empowering politicians to lie and acquire more power in the name of the poor.
- Economic Independence AKA refusing to conform to standards enforced by impartial outside bodies who cannot be controlled
- Political Sovereignty AKA empowering politicians to lie and acquire more power in the name of loving their country.