This study examines lay theories and demographic correlates of happiness in
Britain, China (Hong Kong) and Japan among comparable groups. 311 young pe
ople completed a questionnaire measuring lay theories of happiness (COHQ) a
nd the Oxford Happiness Inventory (OHI). The British participants reported
highest levels of happiness. The 36 causes factored into six internally coh
erent and interpretable factors. Only one of the six factors significantly
correlated (r = .21, p < .05 to r = .34, p < .01) with the Oxford Happiness
Inventory (OHI) scores. Path analysis, using the OHI as the dependent vari
able showed that among the lay theory factors, only lay theories about achi
evement and freedom in life and work was a direct predictor. The role and f
unction of lay theories with respect to happiness are discussed.