Three-Variable Weng-Zhang Algorithms with Subscript-Consistent Traversal Type Added as well as Five-Variable Ones Applied to UKGDPNG Year Forecast

Gross domestic product (GDP) is considered as a rational measure of comprehensive national power. Therefore, the forecast of GDP growth is a hot topic for scholars in economics and other fields. In this long paper, the authors (i.e., we) use a class of year-prediction (YP) algorithms so-called WZ (Weng-Zhang) algorithms to predict the occurrences of negative GDP growth of UK (United Kingdom). We conclude that around 2026, 2037, 2042, 2048, 2054, and 2068, the GDP growth of the UK has greater risks of becoming under 0.