Consulting’s Best Kept Secret is No Longer Secret

The most well-known use for blockchain is providing the platform for cryptocurrencies. Here is Q&A into the definitions and uses of blockchains.

  • Q: What is a cryptocurrency?

A: There is no commonly accepted definition, but the Bank for International Settlements defines it as a digital means of payment that lacks an intermediary (hence “peer-to-peer”) and does not represent the obligations of an issuer.

two persons holding gold-colored Bitcoin
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Q: Why do cryptocurrencies exist?

A: They fit in a few broad categories:

Digital cash coins, such as Bitcoin, are a cash alternative that is free from government or central bank control and may offer greater anonymity than conventional payment systems.

Payment infrastructure tokens, such as Ripple or Utility Settlement Coin, support a payment system for conventional currencies but with advantages in cost, speed or reliability.

Securities tokens, such as RMG, support peer-to-peer trading in an ownership stake of an asset such as gold or art.

Utility tokens, such as Filecoin, support trading of goods or services such as data storage or computing power.General platform tokens, such as Ether, support a platform for the use of decentralized electronic peer-to-peer transactions for a variety of other needs.

Different cryptocurrencies are designed for different purposes.

Some cryptocurrencies are accessible to the public while others are only “permissioned” to authorized users. Some cryptocurrencies make it easier or harder to audit transactions or trace them to individual users. Cryptocurrencies also employ varying cryptographic and validation techniques for transactions, which can greatly influence transaction costs.

  • Q: How big is the cryptocurrency market?

A: Roughly $400 billion to $800 billion, but the number is difficult to estimate. The global value peaked in January at over $800 billion but tumbled to less than $500 billion a couple weeks later.


Market Cap by Cryptocurrency ($billion, as of 2/8/2018)

  • Q: How does blockchain relate to cryptocurrencies?

A: Blockchain is the underlying technology behind most, but not all, cryptocurrencies.A blockchain is a continuously growing list of electronic records (blocks) that are sequentially linked using cryptography. This list, or “ledger,” is stored and maintained by a network of users (nodes) that collectively validates each new block and keeps synchronized replicas of the entire ledger—therefore eliminating the need for a central, trusted counterparty.

How Does Bitcoin Use Blockchain in a Transaction

  • Q: How could cryptocurrencies and blockchain affect economic growth?

A: Advocates of cryptocurrencies point to their potential to improve payments and payment-like processes, enabling lower costs and increased speed, transparency, reliability, and immediacy in availability of funds. If transaction costs are lowered and cryptocurrency values stabilize, cryptocurrencies could help to expand payment services and promote financial inclusion among populations with limited access to formal banks.Blockchain could facilitate record management for many other activities, such as voting, government services, identity management, energy distribution, agricultural trading, and even food traceability. New and unexpected applications are likely to appear in the coming years for both cryptocurrency and blockchain.

  • Q: What could be the impact on financial stability?

A: Cryptocurrencies have the potential to reduce financial stability, but they might also provide new tools for managing financial stability. This depends in part on how cryptocurrency adoption evolves and how interlinked it becomes with existing systems.Volatile cryptocurrency prices and weak consumer and investor protections could in theory produce losses that affect important financial institutions or markets, although this does not appear to be a threat yet, given the size of cryptocurrency markets compared to the wider financial system. So far, the exposure of financial institutions and institutional investors is very limited.In theory, cryptocurrencies could also reduce systemic risks in the financial system, especially in the payments sector if they lowered credit risks by speeding up the settlement of transactions or reducing errors.

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Photo by Pawel Janiak / Unsplash
  • Q: How might monetary policy be affected by cryptocurrencies?

A: Cryptocurrencies could have a large impact on monetary policy if they become a real substitute for conventional currencies. However, existing levels of cryptocurrencies are dwarfed by the volume of major conventional currencies. While the value of cryptocurrencies recently peaked at $800 billion, the world’s money supply (including cash held in accounts) is over $90 trillion.In the near term, countries with exchange and capital controls face the greatest risk. Market participants could circumvent these controls by using cryptocurrencies for capital transfers or foreign exchange transactions. This depends on whether a government effectively restricts buying or redeeming cryptocurrencies with their national currency.

  • Q: How could fiscal policy be affected by cryptocurrencies?

A: The benefits to central banks and governments of printing money would be at least partially at risk if cryptocurrencies become a substitute for national currency. In the more immediate term, cryptocurrencies could have an impact on tax receipts, as they may allow for easier tax evasion.Taxation of permissioned cryptocurrencies only requires regulating and overseeing a set of known permissioned entities. But regulating public cryptocurrencies such as Bitcoin requires setting standards and enforcing them across a decentralized, global, anonymous network.Tax authorities have recently sought insight into transaction volumes for Bitcoin and other cryptocurrencies, but it is difficult to comprehensively ascertain ownership across the cryptocurrency market.

  • Q: Could cryptocurrencies require new consumer or investor protections?

A: Cryptocurrencies have been rife with fraud, including investment schemes “guaranteeing” high returns and pump-and-dump schemes. Few regulations are in place. An estimated $4 billion was raised in 2017 through initial coin offerings (ICOs), many of which were open to any investor. The light regulation was doubtless an incentive for most ICO issuers, but it’s not always clear even what current regulations apply to ICOs.China has prohibited ICOs and cryptocurrency trading in specialized exchanges and has moved to block access to ICOs and cryptocurrency trading websites. By contrast, Australia and Japan have recognized cryptocurrencies as a means of payment and a financial asset. And the French government has recently announced plans to support and encourage ICOs.There is no consensus on the right approach. As policymakers and industry participants pursue answers to these questions about cryptocurrency, there’s likely to be a push for increased global coordination in policy, but it is still too early to bet on which direction they will follow.

Some ICO's have promised big returns in exchange for tokens that may result in total losses
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