초록 없음 Oswald, A. J. (1997). Happiness and economic performance. The economic journal, 107(445), 1815-1831. https://doi.org/10.1111/j.1468-0297.1997.tb00085.x
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초록 없음 Oswald, A. J. (1997). Happiness and economic performance. The economic journal, 107(445), 1815-1831. https://doi.org/10.1111/j.1468-0297.1997.tb00085.x