Basics for Forecasting a Stationary Time Series Using Information from Its Past

Since market behavior is volatile, this research intends to help investors and business organizations make forecasts with certainty and, as a consequence, with the least possible error in order to succeed in the management of their projects and operations. Elements such as inflation rate, exchange r...

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Bibliographic Details
Author: Bazán Ramírez, Wilfredo
Format: article
Status:Published version
Publication Date:2020
Country:Perú
Institution:Universidad Nacional Mayor de San Marcos
Repository:Revistas - Universidad Nacional Mayor de San Marcos
Language:Spanish
English
OAI Identifier:oai:revistasinvestigacion.unmsm.edu.pe:article/16504
Online Access:https://revistasinvestigacion.unmsm.edu.pe/index.php/idata/article/view/16504
Access Level:Open access
Keyword:time series
stationarity
unit root
white noise
variance
series de tiempo
estacionariedad
raíz unitaria
ruido blanco
varianza
Description
Summary:Since market behavior is volatile, this research intends to help investors and business organizations make forecasts with certainty and, as a consequence, with the least possible error in order to succeed in the management of their projects and operations. Elements such as inflation rate, exchange rate, stock prices, economic and financial results, sales, among other variables, are causes of concern for investors. Due to their data structure, these financial instruments correspond to time series, which take values or realizations along time and are spaced over time. The previous behavior of the series is used to forecast its value, return and volatility. It must be taken into consideration that forecasting using traditional techniques might result in imprecisions, so it is necessary to forecast using econometric models because of their robustness and precision. These are also known as univariate time series models.