There are several countries around the world that are developing national blockchain-based digital currencies — such as Venezuela and its state-owned Petro (PTR), China and its plans to issue a government-backed digital currency, etc.

We reached out to experts in the crypto and blockchain industries, central bank officials and researchers to answer whether or not we need a blockchain-based national digital currency if decentralized cryptocurrencies already exist.

Related: Central Bank-Issued Digital Currencies: Why Governments May (or May Not) Need Them

At the beginning of 2019, the Bank for International Settlements conducted a survey, revealing that 70% of central banks worldwide are examining the potential of issuing a central bank digital currency (CBDC).

Related: CBDCs of the World: The Benefits and Drawbacks of National Cryptos, According to Different Jurisdictions

Later, a European Central Bank official highlighted the benefits of CBDCs and the International Monetary Fund published a report saying that central banks might issue digital currencies in the near future.

Why do we need CBDC if there are cryptocurrencies already?

Alex Tapscott, co-founder of the Blockchain Research Institute The question is not whether we need digital fiat currencies or not, but rather whether governments will fight to keep control over their monetary sovereignty and take steps to safeguard those powers. The answer is unequivocally, yes. Within 10 years, I expect that every major fiat currency in the world will be a digital currency on a blockchain. There are challenges to governments coming from multiple different directions. Bitcoin is the most obvious one — an alternative store of value and medium of exchange that exists outside of government censorship. But increasingly, large companies like Facebook — and soon, I'd guess, Amazon and others — are looking to launch their own payment systems and native digital currencies. The United States will surely do it in order to maintain global reserve status, and China will surely do it to extend social control over its population and extend its influence along the new Silk Road, in Africa and elsewhere its trying to influence. The currency wars are only just beginning. It will be a wild ride. Buckle up.

Morten Bech, head of secretariat, Committee on Payments and Market Infrastructures, Bank for International Settlements No matter the question, decentralized cryptocurrencies — as we know them — are unlikely to be the answer. Decentralized cryptocurrencies make sense if you have something to hide. But that does not apply in most cases. What people need is (digital) money that they can trust in an increasingly digitized and global world. The technology is not settled. Neither Sweden nor Uruguay chose blockchain as the basis for their digital currency pilot programs. Innovation built on tried-and-trusted technology is making domestic payments increasingly convenient, instantaneous and available 24/7. Private and public experimentation with new ideas for fixing cross-border payments is finally gaining momentum. Not every idea is a good one. But payments are rightly in focus and the best ideas need room to take off.

Larry D. Wall, executive director, Center for Financial Innovation and Stability Governments currently supply digital currencies but typically only to banks. Banks then supply digital currency to the rest of the economy. Some governments (central banks) may someday offer digital currency directly to nonbank entities, but the amount offered on blockchains is likely to be relatively small. Blockchains are an inefficient database solution in systems that rely on a trusted third party (see Meunier’s review of blockchain decision models). Nevertheless, some governments may issue some digital currency on a blockchain to facilitate on-chain transactions. Decentralized cryptocurrencies are not a substitute for a government currency. Decentralized currencies do not satisfy some of the reasons why governments issue currency, such as retaining control over monetary policy, earning seigniorage and retaining the ability to have a lender of last resort. Moreover, decentralized cryptocurrencies need to overcome a variety of hurdles before they could challenge government-issued currency. No decentralized cryptocurrency meets all of the minimum requirements including widespread acceptance, having a relatively stable value, being safe and convenient to use, and having the ability to handle large throughput. Additionally, issues such as governance mechanisms, and vulnerability of consensus mechanisms must be resolved before permissionless blockchains could become essential parts of the financial system.

Robby Houben, professor, University of Antwerp Alexander Snyers, researcher, University of Antwerp, co-authors of “Cryptocurrencies and Blockchain,” Policy Department for Economic, Scientific and Quality of Life Policies, European Parliament Blockchain-based digital currencies issued by central banks are nothing like decentralized cryptocurrencies. Where the latter are ultimately intended to function as a single global currency independent of any authority, the former are more or less the technological equivalent of physical banknotes controlled by a central authority. The value of national cryptocurrencies is likely to be controlled by the respective central banks. So, the big question is whether they really bring something to the table that cannot already be achieved within the existing monetary market and infrastructures. A number of central banks have played with the idea of issuing a blockchain-based digital currency, but have come to the preliminary conclusion that, for now, the issuance of such digital currency is not the way to go.

Aleksi Grym, head of digitalization, Bank of Finland Assuming blockchain means an open, permissionless, peer-to-peer network, the answer is simple: There is neither a need for a state-issued version of one nor would it make much sense. The whole idea of a cryptocurrency network is that no one in particular controls it. If a state would retain control over the network, it would not serve the purpose that decentralized cryptocurrencies do. On the other hand, none of the countries that are developing state- or central bank-issued digital currencies will be using blockchain technology, as far as I’m aware. Those projects have nothing to do with cryptocurrencies. Instead, they are about finding solutions to the challenges arising from a cashless society — and about financial inclusion. Venezuela is a special case because it’s going through a profound social and economic crisis. So, it doesn’t make sense to compare it to other countries in this context.

Will White, senior consultant at 11:FS National governments will try and may succeed in using some of the best practices developed in the cryptocurrency space to upgrade what we currently understand as government-backed money. That's interesting in the short term, but by definition, what they develop will be centralized, to some extent. The whole point of a truly decentralized cryptocurrency, is exactly that: They are decentralized. There is no central state or quasi-state entity controlling the currency. You trust the math and code, not state actors. What humans have defined as money has changed many times over the centuries, even if the fundamental uses have not — a store of value, a medium of exchange and a unit of account. The fundamental principles that underpin decentralized cryptocurrencies are an upgrade to the existing centralized approach. Mass adoption of decentralized cryptocurrencies is a ways off, but once they reach a tipping point, it seems unlikely that people would choose the inferior option. History teaches us that humans always adopt the upgrade. But let's see, maybe they will prove me wrong