As the chart below demonstrates, the risk
declined in a linear fashion between 5.5 and 9.5 pounds, but started to increase again as birth weight rose above 9.5 pounds.
Since then, the arbitrage strategy has
declined in a nearly
linear fashion to the point where there were no years where the strategy yielded more than $ 200 between 1959 and 1974 and
in 11 of these 16 years an investor either lost money or gained less than $ 100.