We propose a new method for medium-term forecasting using exogenous information. We first show how a shifting-mean autoregressive model can be used to describe characteristic features in inflation series. This implies that we decompose the inflation process into a slowly moving nonstationary...

We develop a non-dynamic panel smooth transition regression model with fixed individual effects. The model is useful for describing heterogenous panels, with regression coefficients that vary across individuals and over time. Heterogeneity is allowed for by assuming that these coefficients are...

In this paper we consider the third-moment structure of a class of time series models. It is often argued that the marginal distribution of financial time series such as returns is skewed. herefore it is of importance to know what properties a model should possess if it is to accommodate...

In the past decade the Colombian economic authorities undertook a series of measures that reduced the structural fiscal deficit, decreased the government currency mismatch and deepened the local fixed-rate public bond market. This paper presents some evidence suggesting that these improvements...

Evidence of smooth transition autoregressive (STAR) representations is found in two, out of three, time series of different measures of annual inflation in Colombia during this decade for monthly data. The STAR-type nonlinearities are asymmetric for inflation computed as the variation of CPI...

En este documento se proponen tres medidas nuevas de la brecha del producto y de la tasa de interés real. En vez de basarnos exclusivamente en los filtros estadísticos, las medidas propuestas usan modelos neokeynesianos semiestructurales, adaptados para una economía pequeña y abierta. Las...

Three new measures of the Colombian output gap and the real neutral interest rate are proposed. Instead of relying only on statistical filters, the proposed measures use semi-structural New Keynesian models, adapted for a small open economy. The output gap measures presented are in line with...