The term structure interest rates revisited brookings papers economic activity

Data Sources
To answer the question using long time series data you may use Datastream, which is avail-able in the library. Other data sources are also available from the websites of central banks (and this is probably the most convenient way to get hold of data).

References
Mankiw, N., 1986, “The Term Structure of Interest Rates Revisited,” Brookings Papers on Economic Activity 1, 61-96.