Monthly data are used to investigate reserves management in eight Asian and Latin American countries. Idiosyncratic explanatory variables enter into co-integration relationships based on a stochastic buffer stock model, where a reserve variability measure is obtained via conditional variance...

This paper assesses empirically whether speculation affects oil price dynamics. The growing presence of financial operators in the oil markets has led to the diffusion of trading techniques based on extrapolative expectations. Strategies of this kind foster feedback trading that may cause...