BBVA, Spain's second-largest bank, released a report this month arguing that blockchain technology represents the most disruptive force the financial sector has encountered. Titled \"Blockchain Technol
BBVA, Spain's second-largest bank, released a report this month arguing that blockchain technology represents the most disruptive force the financial sector has encountered. Titled "Blockchain Technology: The Ultimate Disruption in the Financial System" and published July 10, the report examines how blockchain enables significant simplification and cost reduction in banking. Yet major obstacles and unresolved questions stand in the way of widespread adoption.
Nathaniel Karp, chief economist at BBVA Compass, identified payments infrastructure as the sector most ripe for immediate disruption. Blockchain technology allows buyers and sellers to transact directly without intermediaries. According to Karp, this would mean eliminating "payment networks that are oftentimes slow, cumbersome, and expensive," which would produce "significant infrastructure savings for banks by allowing them to bypass" these systems.
The potential applications extend well beyond payments alone. Blythe Masters, the JP Morgan veteran who pioneered credit default swaps, made this case at Exponential Finance 2015 in June. Blockchains can record bonds, equities, derivatives, and loans. Since these assets already exist in digital form, Karp wrote, "it may be possible that someday the entire system is replaced by a decentralized structure."
Accomplishing this would require what researchers call colored coins, which attach additional information to tokens representing individual assets. These function as smart property, enabling transfers through smart contracts enforced by complex algorithms. Transactions would occur on distributed platforms without any centralized registry, increasing efficiency. Such an architecture would push financial institutions away from their current centralized models toward fully decentralized systems.
But major challenges require resolution before such a transformation occurs. The infrastructure would demand "a massive amount of computer power and efficiently cope with the enormous energy consumption required to support it," Karp cautioned. Regulatory and legal frameworks remain unresolved. He emphasized: "it is not clear how this system would deal with legal and regulatory concerns, as well as with matters of national security, such as money laundering, fraud, tax evasion or terrorism."
Digital currencies also carry risk during volatility. Should adoption reach significant scale, Karp warned that "these shocks could generate systemic risk and severe economic downturns." Technology could overcome these issues, he suggested, but one question looms largest. Karp concluded: "The key question is not how, but when the disruption will become far-reaching. As other industries that have been transformed by new technologies and digitization, blockchain technology could reshape the financial industry well beyond the payments system."
