"If I were to intervene at that stage, it would essentially mean I would say the setting of grade boundaries in Wales will be done on a different basis from the setting of grade boundaries in England, " he said.

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Further, why are we advancing children to the next level, or grade, on an annual basis, as opposed to when each is ready?

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Five of the top-15 tenants are rated investment-grade versus three years ago and was about 34% of overall revenue on a pro forma basis now coming from investment-grade.

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Bonds issued by investment-grade firms have tightened against Treasuries by 80 basis points (hundredths of a percentage point) since October 15th, their widest level.

ECONOMIST: Corporate debt

Yields on junk bonds have fallen over the past two weeks, and the gap in yields between investment-grade bonds and junk has narrowed, from 688 basis points to 600.

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On September 9th, Hankook Tyre, a tyre maker with an investment-grade rating, issued 45 billion won-worth of three-year bonds at some 40 basis points (hundredths of a percentage point) above the average three-year bond yield in the secondary market.

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Low investment-grade paper still gets my money because the yield disparity with 10-year Treasuries, at least 300 basis points, is still attractive if you believe Treasury yields stick near 3% for a year or two.

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