LA PAZ — This month marks 20 years since the most successful monetary policy in Ecuador's history: dollarization and the shutting down the Central Bank. While some still criticize the move, and the former president even tried to reverse it, the economic benefits of dollarization are clear. On this anniversary, it's worth looking more closely at what the move has meant for the country.

Dollarization in Ecuador, which officially took place on Jan. 9, 2000, has been the subject of myths and speculation. The same can be said for the role of the currency and the Central bank in the economy, the nature of inflation, or how exchange rates can affect exports and a country's competitive profile. These have been of relevance at least since the mercantilist system of the 15th and 16th centuries.

Dollarization's first and foremost success since imposed in January 2000, was to check inflation and the so-called "inflation-tax." That is effectively a tax that needs no parliamentary approval and would have allowed someone like President Rafael Correa, who wanted to recover the Sucre currency, to lay his hands on the savings of people forced to use the old currency.

Likewise as the analyst Gabriela Calderón has said, one of dollarization's biggest benefits was to eliminate any possibility of public finances affecting the banking and financial system. With a fiscal crisis equal to or worse than Argentina's today, Ecuador most likely would have had to devalue the Sucre countless times as a public financing mechanism. Dollarization makes it impossible for currency devaluation to slide toward a typical financial crisis.

Private investment would be even more costly with a highly volatile national currency.

Another myth is that dollarization has made Ecuador's productive structure more costly, yielding bad results in terms of competitiveness. Yet if reduced competitiveness were due to the exchange rate, Ecuador could not benefit from the current state of globalization as it does, without dollar-priced products. As in Bolivia, Ecuador's relatively low competitive profile is due to its rigid labor regime, taxes, highly protectionist trade policies, and a hyper-regulated and obsolete banking and financial system. Private investment in Ecuador would be even more costly with a highly volatile national currency.

Why was it practically impossible for Correa to renationalize the currency? Because in contrast with the Argentinian convertibility plan in the 1990s under President Carlos Menem, the dollars were not in the hands of politicians and tax-greedy governments, nor in the banking or financial system — but with ordinary people.

Fortunately, in the same way that it was difficult for countries like Greece and Italy to abandon the euro to recover the drachma or lira to liquidate their bloated debts and pay off deficits, so Ecuador and its politicians were unable to abandon the dollar in recent years. And just like in Bolivia, the biggest risk to the economy now would be to abandon a fixed exchange rate.

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