Chapter 6: Measuring the Nonlinearity of the Relationship between Finance and Energy Investment

The development of mathematics allows scientists from related fields to build certain scientific models and conduct research. This is especially true for econometric research involving the processing of large amounts of data. One of the main roles in this case is played by a set of regression analysis methods. Its essence is to determine the influence of some variables on others. Up to this point, the studied topic of the relationship between economic growth and financial development was largely characterized by the construction of regression models, comparing them with each other, and determining the most fair and justified ones. The methods of these studies were different, as well as the results. This is due to the rapid development of this scientific field.