261. Why Are We Still Using Cash?

Episode Summary

Executive Summary: The episode argues that cash is not just outdated but central to crime, tax evasion, and monetary policy problems—yet it also offers privacy and resilience. Through Ken Rogoff and James Henry, it explains why large bills persist, then contrasts emerging cashless models in Sweden and India, before ending with a speculative future where automation reduces the need for money altogether.

Main Topics: Cash as an enabler of crime and tax evasion (Priority: 5/5): The episode frames cash as the common denominator behind drug trafficking, bribery, robbery, money laundering, prostitution, and undeclared income, making anonymity and portability valuable to illicit activity. The economic and policy case against large bills (Priority: 5/5): Ken Rogoff argues that large denominations, especially $100 bills, facilitate underground activity and distort policy, while central banks profit from issuing cash even as society bears hidden costs. Privacy and civil-liberties objections to cash elimination (Priority: 4/5): Critics argue cash protects ordinary people from surveillance, preserves autonomy, and provides a hedge against corrupt or shaky financial systems; Rogoff responds that small, occasional anonymous transactions should remain possible. Sweden as a near-cashless model (Priority: 5/5): Sweden shows how card payments, real-time transfers, bank policies, union pressure, and mobile apps like Swish can sharply reduce reliance on cash after high-profile robberies increased public support for reform. India’s digital leapfrogging through identity and payments (Priority: 4/5): India’s Aadhaar system and UPI payments are presented as infrastructure that can reduce leakage, improve inclusion, and move a large, cash-heavy economy toward electronic payments. A speculative future beyond money (Priority: 3/5): The discussion ends with Star Trek and automation, suggesting that if abundance and non-scarcity expand, money itself may eventually become less central or obsolete.

Key Arguments: Large-denomination cash is disproportionately used for crime and tax evasion rather than ordinary commerce. Governments have a profit incentive to print cash, but those visible gains are outweighed by the social costs of illicit use. Eliminating large notes gradually could reduce crime and shrink the tax gap without banning all cash at once. Privacy concerns are real, but they can be balanced by preserving small-scale anonymous transactions. Modern payment systems can replicate cash’s advantages—speed, portability, and convenience—without requiring physical bills. Sweden demonstrates that a society can move rapidly toward cashlessness when banks, regulators, and users align. India can leapfrog older payment infrastructure by combining biometrics, bank accounts, smartphones, and instant payments. In a highly automated, low-scarcity economy, money may become less necessary over time.

Data Points: U.S. paper currency in circulation (1976): About $80 billion - Rogoff introduces the growth in U.S. cash over the past 40 years. U.S. paper currency in circulation (today): About $1.5 trillion - Shows nearly 20x growth since 1976. Share of U.S. cash in $100 bills (1976): About 25% - Used to illustrate the shift toward larger notes. Share of U.S. cash in $100 bills (today): About 80% - Shows dominance of high-denomination notes. Federal profit from printing cash: About four-tenths of 1% of GDP; roughly $70 billion a year - Rogoff on the Treasury’s seigniorage incentive. Florida illegal drug trade: Roughly $10 billion a year - Late-1970s DEA estimate cited to explain demand for cash. U.S. tax gap (2006): About $400 billion, or 2.7% of GDP - Illustrates the scale of unpaid taxes enabled by cash. Global bribery estimate: About $1 trillion a year - Rogoff cites a World Bank estimate. Sweden cash-in-transit as share of GDP: Less than 2% - Used to compare Sweden’s cash use to the U.S. and euro area. U.S. cash-in-transit as share of GDP: About 7% - Comparison point for Sweden’s lower cash reliance. Euro area cash-in-transit as share of GDP: Around 9% - Further comparison with Sweden. Swedish cash in circulation decline: Over 10% in the last year - Shows the speed of Sweden’s move away from cash. India’s underground economy: As big as half a trillion dollars a year (estimate) - Cited as a reason digital payments could improve compliance. Aadhaar coverage: 1 billion people in just over five years - Demonstrates the scale of India’s digital identity rollout. Aadhaar transactions: Over 1 billion transactions in the last three years - Evidence of adoption of electronic transfers. Indian smartphone base: 200 million, expected to grow to 700 million - Supports the case for mobile-based payments. Consumer payments via cash in developed countries: 20% to 25% - Boston Consulting Group and Google report cited in the episode. Consumer payments via cash in India: 78% - Shows India’s current dependence on cash.

Pivotal Quotes: "Cash lies at the heart of some of today's most intractable public finance and monetary problems." — Ken Rogoff: Rogoff summarizes the thesis of his anti-cash argument and book, The Curse of Cash. "We have our own meth lab. It's called Treasury." — Stephen Dubner: A pointed analogy describing the government’s role in printing and distributing cash. "We feel like Swedes when we see Swedish cash, even though we do not use it." — Niklas Arvidsson: Arvidsson explains the sentimental attachment to cash in Sweden despite declining usage.

Implications: The episode suggests cash is likely to shrink as a medium of exchange, especially where digital infrastructure is strong. But any transition must balance crime reduction, monetary control, and privacy, while ensuring financial inclusion for people who still rely on physical money.