Almeida, Caio; Gomes, Romeu; Leite, André; Vicente, José - Central Bank of Brazil, Research Department - 2007
In this paper, we analyze the importance of curvature term structure movements on forecasts of interest rate means. An extension of the exponential three-factor Diebold and Li (2006) model is proposed, where a fourth factor captures a second type of curvature. The new factor increases model...