This document aims to study the behavior of the industries that make up the Gross Domestic Product (GDP) of Ecuador, in order to demonstrate the incidence that other industries have on Commerce, concerning to the health crisis produced in 2020, which continued in 2021, based on the database published on the official website of the Central Bank of Ecuador (BCE). In order to verify the proposed hypothesis and comply with the objectives established on this document, through the use of the R statistical software, descriptive statistics were carried out to verify the behavior of each one of them over time and, through a linear regres-sion model, identify statistically significant industries; With this information, parametric specifications were applied for k va-riables; thus, linear regression models, cointegration, autoregressive vectors and k-ways with the STATIS method. Procedure with which it was possible to identify the effects of these variables in moments of crisis and demonstrate that, during the pandemic period, the Commerce industry was affected by the behavior of various industries; and, that other of them present an independent behavior of the regular tendency of the GDP.