What is The Single Best Investment about?

The Single Best Investment is Lowell Miller's extended argument for dividend growth investing as the most reliable long-term wealth-building strategy available to individual investors. The single best investment of the title is not a specific stock or fund but a class of investment: high-quality companies with a track record of consistently growing their dividends. Miller, a professional money manager, makes the case that dividend growth combines the total return potential of equities with the income certainty of bonds, and does so in a way that compounds powerfully over time.

The conceptual core is what Miller calls the three components of return: the current dividend yield, the rate of dividend growth, and any change in the price-to-earnings multiple investors are willing to pay. He argues that the first two components are more predictable and controllable than the third, which is largely at the mercy of sentiment. A company that currently yields 3% and grows its dividend at 7% annually produces a 10% nominal return even if the P/E multiple never changes. Over decades, this compounds into substantial wealth, and the growing dividend income provides a cushion during market downturns that pure capital appreciation strategies lack.

Miller distinguishes his approach from the high-yield trap — the mistake of chasing the highest current yield without regard for whether the dividend is sustainable and growing. High current yield often signals financial stress or a business in decline. The companies Miller targets are durable consumer franchises, utilities, and established industrials with decades of dividend history, low payout ratios relative to earnings, and strong free cash flow. The strategy is explicitly conservative and long-term, built for investors who want to sleep at night rather than maximize short-term performance.

The book shows its age in some details — it predates the explosion of index funds and ETFs — but the underlying logic remains intact. Dividend growth investing has since been validated by decades of additional data and formalized in academic research on factor investing. For investors drawn to income rather than pure capital appreciation, Miller's framework remains a useful and honest account of why the strategy works and what it requires in terms of patience.