Quinoa has undergone a remarkable transformation in recent decades, consolidating its position as a fundamental pillar for Andean farming communities and emerging as a prominent player in the global superfood market. However, the prices of this grain have shown complex dynamics, with large...

Quinoa has undergone a remarkable transformation in recent decades, consolidating its position as a fundamental pillar for Andean farming communities and emerging as a prominent player in the global superfood market. However, the prices of this grain have shown complex dynamics, with large...

Exports are a determining variable of the national product so the objective is to perform quantitative estimations, first taking them in an aggregate manner, then by group of products and finally by the main destination market, considering here the four main ones constituted by the US, Chile,...

Spanish Abstract: Si bien es amplia la literatura que se ha dedicado a estudiar los hechos estilizados en las series de los rendimientos, para el caso colombiano solamente existe un trabajo que documenta estos hechos. Alonso y Arcos (2006) documentaron la presencia de cuatro hechos estilizados...

There are many studies published in the literature on stylized facts in financial time series. However, for the Colombian case there is only one work that documents the stylized facts of the returns. Alonso and Arcos (2006) documented the presence of four stylized facts in the exchange rate...

Exports are a determining variable of the national product so the objective is to perform quantitative estimations, first taking them in an aggregate manner, then by group of products and finally by the main destination market, considering here the four main ones constituted by the US, Chile,...

Un conjunto de modelos GARCH multivariados son estimados y su validez empírica comparada a partir del cálculo de la medida VaR, para los retornos diarios de la tasa de cambio nominal del peso colombiano con respecto al dólar americano, euro, libra esterlina y yen japonés en el periodo...

El modelo gaussiano GARCH(1,1) ha sido empleado, tradicionalmente, en el estudio de la tasa de cambio; sin embargo, un número importante de estudios recientes (utilizando modelos FIGARCH e HYGARCH) ha encontrado evidencia de persistencia en su volatilidad. En este trabajo, usando una estrategia...