This paper discusses how to specify an observable high-frequency model for a vector of time series sampled at high and low frequencies. To this end we first study how aggregation over time affects both the dynamic components of a time series and their observability, in a multivariate linear...

This paper addresses two important topics in recent economic historiography: globalization and the great divergence. We first present a search for statistical evidence in the Far East of an “Early Globalization” comparable to the one ongoing in the West since the mid-eighteenth century....

Espasa and Mayo provide consistent forecasts for an aggregate economic indicator and its basic components as well as for useful sub-aggregates. To do so, they develop a procedure based on single-equation models that includes the restrictions arisen from the fact that some components share common...