Controversial curves of the economy: An up-to-date investigation of long waves

The question of the validity of the “so called” Kondratieff's theory of long waves has been a well-known controversial issue among historians, economic, social and political science scholars. In this work, the author analyses its consistency and cycles general framework investigating both original Kondratieff's data (never processed by harmonic analysis in their whole dataset) and the latest and longest available economic time-series. Fixing the boundaries of statistical analysis, hence, the main purpose is to furnish an up-to-date empirical contribution in exploring the conceptual cycles hypothesis by recurring to dedicated quantitative techniques applied to strictly economic datasets.