ken fisher, a forbes columnist and author of several books, wrote "The Wall Street Waltz" in 1987 (i believe). it it my favorite market book and is a series of 100 chart such as the dow relative to interest rates, relative to capital spending, relative to gold, oil, employment, pe, sunspots, skirtlength, etc. you get the idea. the book goes back many years, covering times when the railroads where similar to the internet stocks of today or the situations when market panics occurred during the past 300 years. one chart is the dow relative to unexpected historical events like jfk assaination, nixon impeachment, declaration of war, clinton/lewinsky, etc. the finding is that any effect on the market is very short-lived if it exists at all. that's the beauty of this book, it's all graphs and dispels many popular misconceptions. unfortunately, it only covers up to 1985 or so but is still fascinating.