
Would anyone else consider lowering their weighting of gold if/when we begin to see real interest rates above ~2%? I think it might be reasonable to drop gold down to a 10-15% weighting if this happens, maybe even lower.
I plugged the following scenario into Simba:
- between Jan 1, 1972 and Dec 31, 1981, a standard 4x25% PP
- between Jan 1, 1982 and Dec 31, 2002, either 30% Stocks / 30% LLT / 30% STT / 10% Gold or 34% Stocks / 33% LLT / 33% STT.
- between Jan 1, 2003 and Dec 31, 2002, a standard 4x25% PP
Here are the results (the blue line is switched to either the PP or 30/30/30/10, depending on the real interest rate, while the pink line is switched between the PP and 34/33/33):

Code: Select all
(PP or 30/30/30/10) (PP or 34/33/33) (PP) (30/30/30/10) (34/33/33)
1972 18.60% 18.60% 18.60% 12.59% 8.59%
1973 14.36% 14.36% 14.36% 2.99% -4.61%
1974 14.41% 14.41% 14.41% 2.88% -4.82%
1975 6.84% 6.84% 6.84% 13.73% 18.34%
1976 11.77% 11.77% 11.77% 15.02% 17.20%
1977 5.06% 5.06% 5.06% 1.64% -0.64%
1978 11.88% 11.88% 11.88% 6.97% 3.69%
1979 39.27% 39.27% 39.27% 21.99% 10.49%
1980 14.18% 14.18% 14.18% 14.07% 14.02%
1981 -4.13% -4.13% -4.13% 1.62% 5.44%
1982 25.39% 26.59% 23.57% 25.39% 26.59%
1983 7.49% 10.19% 3.47% 7.49% 10.19%
1984 7.65% 10.66% 3.12% 7.65% 10.66%
1985 23.18% 25.18% 20.19% 23.18% 25.18%
1986 17.58% 17.22% 18.12% 17.58% 17.22%
1987 3.39% 1.35% 6.44% 3.39% 1.35%
1988 8.21% 10.86% 4.24% 8.21% 10.86%
1989 16.18% 18.34% 12.94% 16.18% 18.34%
1990 2.28% 2.73% 1.59% 2.28% 2.73%
1991 17.64% 20.78% 12.96% 17.64% 20.78%
1992 6.43% 7.82% 4.34% 6.43% 7.82%
1993 11.80% 11.20% 12.70% 11.80% 11.20%
1994 -2.59% -2.59% -2.58% -2.59% -2.59%
1995 23.46% 26.01% 19.65% 23.46% 26.01%
1996 6.73% 8.05% 4.78% 6.73% 8.05%
1997 13.21% 17.11% 7.39% 13.21% 17.11%
1998 12.98% 14.57% 10.61% 12.98% 14.57%
1999 5.14% 5.68% 4.36% 5.14% 5.68%
2000 4.81% 5.98% 3.04% 4.81% 5.98%
2001 0.39% 0.37% 0.39% 0.39% 0.37%
2002 3.61% 1.22% 7.17% 3.61% 1.22%
2003 13.88% 13.88% 13.88% 12.84% 12.16%
2004 6.29% 6.29% 6.29% 6.65% 6.90%
2005 8.03% 8.03% 8.03% 6.08% 4.79%
2006 10.74% 10.74% 10.74% 8.50% 7.02%
2007 13.30% 13.30% 13.30% 9.84% 7.54%
2008 -0.72% -0.72% -0.72% -1.86% -2.65%
2009 10.52% 10.52% 10.52% 7.83% 6.05%
2010 14.48% 14.48% 14.48% 11.53% 9.56%
2011 10.52% 10.52% 10.52% 10.71% 10.82%
STDEV 8.21% 8.62% 7.99% 6.95% 8.05%
AVG 10.86% 11.47% 9.95% 9.51% 9.23%
The end result of dropping gold down to 10% when real interest rates are above 2% is an extra 0.90% annual gain with slightly higher volatility. Not too shabby.
Also, during +2% real interest rate periods, one could reduce the PP to 50% of their portfolio and then put the rest in a 34% stock, 33% LLT, and 33% STT.
Of course this all depends on gold maintaining its correlation with real interest rates. And to avoid jumping back and forth, I might use a 2 year average of the real interest rate to decide when to switch.
Edit: Fix typos.