What is the term structure of interest rates, and which theories explain its shape?

What is the term structure of interest rates, and which theories explain its shape?

• A. The term structure shows yields across different maturities; theories: expectations hypothesis, liquidity preference, and market segmentation.
• B. The term structure shows inflation only; theories: demand-pull, cost-push, monetarist.
• C. The term structure is flat; theories: random walk, efficiency.
• D. The term structure relates to currency exchange; theories: PPP, interest parity.

Answer: (A)

The term structure of interest rates shows yields on bonds across different maturities, forming the yield curve that can slope upward, flatten, or invert depending on how investors view future rates and risk over time. The explanations for its shape center on three ideas. The expectations hypothesis says long-term rates reflect the market’s anticipated path of future short-term rates—if investors expect higher rates ahead, the curve rises; if they expect lower rates, it can flatten or invert. The liquidity preference theory adds that investors demand a premium for tying up money in longer maturities due to greater risk and lower liquidity, which tends to push the curve upward even when rate expectations are flat. The market segmentation theory argues that different investors prefer different maturities, so the curve is shaped by the relative supplies and demands in each maturity segment rather than by expectations about future rates. Other choices miss the mark because they look at inflation dynamics, currency relationships, or general asset-price concepts rather than the relationship between yields across maturities. Inflation theories describe price level changes, and exchange-rate theories address parity and FX movements, not the term structure of bond yields. While ideas like random walk or market efficiency pertain to asset prices in general, they don’t specifically explain why yields vary with maturity.

The term structure of interest rates shows yields on bonds across different maturities, forming the yield curve that can slope upward, flatten, or invert depending on how investors view future rates and risk over time. The explanations for its shape center on three ideas. The expectations hypothesis says long-term rates reflect the market’s anticipated path of future short-term rates—if investors expect higher rates ahead, the curve rises; if they expect lower rates, it can flatten or invert. The liquidity preference theory adds that investors demand a premium for tying up money in longer maturities due to greater risk and lower liquidity, which tends to push the curve upward even when rate expectations are flat. The market segmentation theory argues that different investors prefer different maturities, so the curve is shaped by the relative supplies and demands in each maturity segment rather than by expectations about future rates.

Other choices miss the mark because they look at inflation dynamics, currency relationships, or general asset-price concepts rather than the relationship between yields across maturities. Inflation theories describe price level changes, and exchange-rate theories address parity and FX movements, not the term structure of bond yields. While ideas like random walk or market efficiency pertain to asset prices in general, they don’t specifically explain why yields vary with maturity.