Spring Tide. Considerations on Industrial Development and Price Movement, originally published in Dutch in 1913 in the Social-Democratic monthly De Nieuwe Tijd and translated by Herman Pieterson is a pioneering work by the first systematic researcher of long waves in economics, Jacob (Bob) van Gelderen, writing as J. Fedder. You can download the dossier that includes
Long Waves in Economics: Bob van Gelderen’s Extraordinary Contribution in 1913
