Happinomics among Factors of Production using a Principal Component Analysis Approach: A Case Study of Labour and Entrepreneurs’ Subjective Happiness in KwaZulu-Natal, South Africa. Mediterr. J. Soc. Sci. 2014;5(4):99. Accessed July 18, 2024. https://www.richtmann.org/journal/index.php/mjss/article/view/2198