Correlação entre o preço do boi gordo e a variação do dólar

Abstract

The objective of this work was to analyze the degree of correlation between the price of real cattle and the dollar rate and also between the price of real cattle in reais and its price in dollars. For the development of the work, daily data on the prices of the three variables were collected, these data were compiled in a table using the electronic platform as the main tool for the development of correlation analyses. The time interval analyzed was between January 2000 and June 2021. Initially, the correlation formula was applied over the entire time interval, thus obtaining the influence of the dollar rate on the price of real cattle and also the influence of the price of cattle product in dollars over its price in real. After that, the dataset was divided into 5- year intervals, in order to be able to analyze more deeply what the main factors affected the analysis results. Also, in order to obtain a better visualization of the results found and so that we can better present the explanations, graphs were created, where the 3 variables are presented in order to improve the visualization of the results, and a graph was created that presents the series of entire data and also one more graph for each 5-year interval. From the results found, it can be concluded that the dollar rate has a high positive correlation with the price of real cattle and the price of real cattle in dollars has a moderate positive correlation with the price of the product in the national currency.