Evalute the change in the shape of the yield curve between (a) August 1991 and August 1992, and (b) August 1992 and November 1992 using expections theory and market segmentation theoryz

792 Cases Table 1 Treasury Security Yields \begin{tabular}{clll} Maturity & August 1991 & August 1992 & November 1992 \\ \hline 3 months & 5.33% & 3.13% & 3.20% \\ 6 months & 5.39 & 3.21 & 3.43 \\ 1 year & 5.78 & 3.47 & 3.80 \\ 2 years & 6.43 & 4.19 & 4.65 \\ 3 years & 6.80 & 4.72 & 5.23 \\ 4 years & 7.23 & 4.86 & 5.72 \\ 5 years & 7.43 & 5.60 & 6.12 \\ 6 years & 7.51 & 5.87 & 6.34 \\ 7 years & 7.74 & 6.12 & 6.56 \\ 8 years & 7.79 & 6.32 & 6.87 \\ 9 years & 7.86 & 6.47 & 6.95 \\ 10 years & 7.90 & 6.59 & 7.18 \\ 30 years & 8.14 & 7.39 & 7.53 \end{tabular}