From Cash to Code: Rethinking Money to Tackle Corruption

Money is one of humanity’s most powerful inventions. It is not merely a medium of exchange; it is a social technology that solves coordination problems which no other institution has been able to address with comparable efficiency. By standardizing value, money enables specialization, trade, savings, investment, and intertemporal decision-making. From subsistence economies to complex global supply chains, almost every solvable economic problem in society finds at least a partial solution through money. No credible alternative to the invention of money has ever existed, and none is realistically imaginable.

Yet, like all powerful technologies, money is not neutral in its effects. The form in which money exists matters profoundly. While money as an abstract unit of account is indispensable, its physical manifestation-particularly cash notes-has increasingly become a source of economic distortion, governance failure, and moral hazard. In societies where institutional capacity is weak and enforcement uneven, cash transforms from a facilitator of exchange into a lubricant of corruption. Bangladesh’s experience over decades illustrates this uncomfortable reality with painful clarity.

Greed is a human trait, but corruption is not merely a moral failing; it is an institutional outcome. Financial corruption flourishes when transactions can be hidden, identities obscured, and trails erased. Cash notes, by design, provide all three. They are anonymous, portable, untraceable, and final. Once exchanged, no record remains unless voluntarily created. This feature, once considered a virtue of cash, has become its most damaging flaw in modern governance.

In Bangladesh, the persistence of cash-dominated transactions has allowed unofficial payments to seep into almost every layer of public service delivery. From land registration and construction permits to procurement, taxation, customs clearance, and routine administrative approvals, cash has enabled a parallel system of incentives that operates outside the law but within daily reality. Public services that are supposed to be rights become negotiable favors. The result is not only corruption but also inequality, inefficiency, and erosion of trust in the state.

The problem is not that money creates greed. Rather, the problem is that cash money allows greed to operate without consequence. When bribes are paid in cash notes, accountability disappears. No audit trail exists. No counterparty can be identified. No institutional memory is formed. This is why cash-based corruption is so resilient. It survives policy reforms, leadership changes, and even legal crackdowns. Enforcement agencies can chase individuals, but the medium itself remains intact.

Over time, this has produced a dangerous normalization. Unauthorized cash transactions become socially tolerated, even expected. Citizens factor ‘extra payments’ into the cost of accessing services. Officials rationalize bribes as supplements to income. Businesses treat informal payments as part of operating expenses. This normalization does more damage than corruption itself, because it hollowes out the moral authority of law and policy.

Against this backdrop, the emergence of Central Bank Digital Currency (CBDC) represents a fundamental shift in the architecture of money. CBDC is not new money in economic substance; it is a new form of sovereign money. It is a digital representation of fiat currency issued by the central bank, carrying the same legal tender status as cash but without physical existence. In essence, CBDC is invisible money-money without notes.

What makes CBDC transformative is not digitization alone. After all, digital payments already exist. The real difference lies in transparency, traceability, and programmability. CBDC transactions can be recorded in real time, linked to verified identities, and audited ex post without compromising legitimate privacy. This single change alters the incentive structure of corruption at its core.

When money leaves a digital trail, corruption becomes risky. Unauthorized payments can be detected. Patterns can be analyzed. Discrepancies between income and expenditure become visible. Even if corruption does not disappear entirely, its scale and ease are drastically reduced. Importantly, the focus shifts from moral exhortation to structural prevention.

For Bangladesh, where corruption is often systemic rather than episodic, this shift is critical. Anti-corruption efforts have traditionally relied on investigations, prosecutions, and punitive measures. These are necessary but insufficient. They address outcomes, not enablers. CBDC, by contrast, targets the enabler itself: untraceable cash.

The gradual phase-out of large-denomination cash notes, combined with the introduction of CBDC, can fundamentally disrupt the unofficial movement of money. Bribes cannot be paid discreetly if every transaction is logged. Extortion loses power when payments require digital consent and authentication. Rent-seeking becomes visible when inflows and outflows are recorded.

Public service delivery stands to gain the most. When fees, charges, and payments are made exclusively through digital sovereign money, the scope for unofficial ‘speed money’ shrinks. Citizens pay what is prescribed - no more, no less. Officials perform their duties without bargaining power. The relationship between state and citizen is rebalanced from discretion to rule-based interaction.

Critics often raise concerns about privacy and financial exclusion. These concerns deserve serious attention, but they are not arguments against CBDC; they are design challenges. Privacy does not require anonymity. It requires proportional access, legal safeguards, and due process. A well-designed CBDC system can ensure that transactional data is protected, accessed only under defined legal conditions, and used strictly for public interest purposes.

Similarly, financial inclusion is not undermined by CBDC; it can be strengthened. Bangladesh has already demonstrated remarkable success in mobile financial services. CBDC can be layered onto existing digital infrastructure, allowing even low-income users to transact without traditional bank accounts. Offline functionality, tiered wallets, and simplified interfaces can ensure that digital sovereign money does not exclude the vulnerable.

Another often-overlooked benefit is fiscal integrity. When government payments-salaries, subsidies, social safety nets, procurement disbursements-are made through CBDC, leakages can be drastically reduced. Ghost beneficiaries disappear. Duplicate payments become impossible. Real-time monitoring enhances budget discipline. Tax compliance improves when transactions are visible and income flows traceable.

For Bangladesh Bank, CBDC also offers a powerful monetary policy tool. Unlike cash, digital money can be monitored, analyzed, and calibrated. Currency in circulation becomes measurable in real time. Policy transmission improves. Informal liquidity hoarding declines. The shadow economy shrinks as transactions migrate into the formal system.

Of course, CBDC is not a magic wand. Corruption can adapt. New methods will emerge. But the scale and ease of corruption will change decisively. Moving from a cash-based system to a digital sovereign money system is akin to moving from darkness to dim light. Imperfect visibility is still vastly superior to complete opacity.

The question, therefore, is not whether CBDC can eliminate corruption entirely. No technology can. The real question is whether Bangladesh can afford to continue with a monetary form that structurally supports corruption. Cash notes, particularly in large denominations, have outlived their usefulness in a modern economy striving for transparency, accountability, and inclusive growth.

Money as a technology has always evolved. From shells to coins, from coins to paper, from paper to electronic entries, each transition reflected the needs of society. Today, the need is clear: reducing corruption, restoring trust in public institutions, and aligning incentives with legality. CBDC is not an abstract experiment; it is a logical next step in the evolution of money.

Phasing out cash notes will not be politically easy. Resistance will come from those who benefit from opacity. But policy leadership is tested precisely at such moments. The cost of inaction is visible in everyday governance failures, lost public trust, and economic inefficiency.

If money solves most solvable problems in society, then the way money is designed determines which problems remain unsolved. For Bangladesh, redesigning money itself-by moving from visible cash to invisible digital sovereign currency-may be one of the most powerful anti-corruption reforms available. The opportunity should not be missed.
 

Mehdi Rahman works in the development
sector. He also writes on foreign trade
and monetary policy.