: A paper on Quality Individual Stock Investing compares picking "Dividend Aristocrats" (companies that have increased dividends for 25+ years) against broad market indexes like the S&P 500, illustrating the trade-off between concentrated quality and broad diversification.
: Multiple studies consistently show that 85–90% of portfolio return variability is driven by broad asset allocation (e.g., stocks vs. bonds), while only 10–15% comes from specific security selection and timing. which stock should i buy
: A snapshot of what you pay for future earnings; lower ratios often suggest better value relative to peers. : A paper on Quality Individual Stock Investing