  The stability of the inflation rate is a necessary condition for the proper
functioning of any capitalist economy. In an economic environment with volatile
inflation, the growth of the economy and its distribution among the agents of
society is compromised. For this reason, and because in Costa Rica, as in most
capitalist nations, the monetary authority is in charge of maintaining price
stability, it is necessary to have models capable of predicting the behavior of
inflation. on in the country. Along these lines, this work aims to compare two
of the main types of basic predictive models found in the literature:
univariate autoregressive models, exemplified by ARIMA models, and multivariate
models formulated based on the theory. economics, like the Phillips curve.
