Tokyo stocks declined Friday morning as export-related issues were dragged down by the yen’s rise against the U.S. dollar, while investor caution grew ahead of key interest rate decisions in both the United States and Japan. The 225-issue Nikkei Stock Average fell 326.17 points, or 0.89 percent, from Thursday to 36,507.10. The broader Topix index was down 21.79 points, or 0.84 percent, at 2,570.71. The dollar slid to the upper 140 yen zone on rekindled expectations that the U.S. Federal Reserve will deliver a large interest rate cut at its two-day policy meeting through Wednesday amid concern …