Kate Moodley, franchise director at Discovery, warned that South Africans often equate a big pension pot with a good retirement. She said the focus on the size of a retirement fund can distract from planning how the money will be used once work stops.
In a presentation at an Old Mutual investment conference, Moodley cited two well-known studies on income and happiness. The first, published in 2010 by Daniel Kahneman and Angus Deaton, found that day-to-day emotional well-being stopped improving once annual income reached about $75 000. Moodley noted that the figure is a US dollar amount and, at current exchange rates, converts to roughly R1 247 000, but it was never meant to be a direct South African benchmark.
Later research by Matthew Killingsworth of the Wharton School, released in 2021, painted a different picture. Using a mobile app that collected 1.7 million happiness data points, Killingsworth showed that experienced well-being kept rising with income well beyond the $75 000 mark, and the increase was linear. In simple terms, a jump from $40 000 to $80 000 lifted happiness as much as a jump from $80 000 to $160 000.
These conflicting results prompted an unusual collaboration. Kahneman, Killingsworth and decision scientist Barbara Mellers agreed to re-analyse the data together, with Mellers acting as a neutral referee. Their joint 2023 paper concluded that both earlier findings were correct, but they applied to different groups of people. For the least happy 20 % of earners, happiness rose with income up to roughly $100 000 before flattening. For the majority, happiness kept climbing as income grew, and for the happiest 30 % the relationship grew even stronger at higher incomes.
What does this mean for retirement planning? Moodley explained that people who are financially stressed can see a real boost in well-being from additional money, but once basic financial worries are solved, extra cash may not address deeper sources of unhappiness. She warned against the “one more year” syndrome, where retirees postpone leaving work because they lack a clear plan for how to spend their time.
According to Moodley, a sensible retirement plan should include three elements: a cash buffer for unexpected costs, spending guardrails to prevent overspending, and a floor of guaranteed income to cover essentials. Beyond the numbers, the plan should also answer questions about how retirees will fill their days, manage health costs and maintain social connections.
For South African entrepreneurs and small-business owners, the takeaway is clear. Building a large pension pot is only part of the puzzle. Equally important is thinking about the purpose of that money, whether it funds travel, hobbies, health care or simply provides peace of mind. By aligning financial goals with personal aspirations, retirees can aim for a richer life rather than just a bigger pot.
The 2023 academic paper, co-authored by Kahneman, Killingsworth and Mellers, confirmed that the earlier studies were not mutually exclusive but reflected distinct population segments. For the least happy 20 % of earners, happiness rose with income until roughly $100 000 before plateauing, while the majority kept experiencing gains as earnings increased. The happiest 30 % saw an even stronger income-happiness link at higher levels. This nuance underscores that additional funds can lift well-being for those under financial strain, yet beyond a certain threshold the marginal emotional return diminishes for those already comfortable.
In the joint re-analysis, the three researchers agreed beforehand on a shared methodology to avoid bias. Barbara Mellers acted as the neutral arbiter, overseeing data handling and ensuring that any disagreements about statistical interpretation were resolved impartially. The process involved merging the original survey data with the mobile-app dataset, applying consistent regression models, and cross-checking results against both original publications. By aligning analytical frameworks, the team could isolate the income ranges where each prior conclusion held true, producing a unified narrative that respects both earlier findings.
The collaboration illustrates a rare but growing practice in academic economics where competing hypotheses are settled through pre-agreed joint work rather than prolonged debate in journals. Researchers first draft a memorandum outlining the shared objectives, data sources and statistical techniques, then submit the combined analysis for peer review. Once accepted, the joint paper is published, offering a definitive reference point for policymakers and practitioners who rely on robust evidence when shaping retirement advice.
For retirees and advisors, the implication is that the next step after establishing a cash buffer and guaranteed income is to map out how extra resources will be allocated across activities that matter most. The research suggests that once basic financial security is achieved, the focus should shift to purposeful spending, whether on travel, health, or social engagement, to sustain well-being. Monitoring actual expenditure against the planned guardrails can help ensure that the financial plan remains aligned with evolving personal goals throughout the retirement years.
