A correlation between age at immigration and earnings is observed in Canadian census data. The evidence supports three underlying sources of the effect; first, work experience in the source country yields virtually no return in the host country; second, the return to education varies with age at immigration, and, finally, an 'acculturation' effect is observed for immigrants who are visible minorities or whose mother tongue is not English. Further, it is found that educational attainment, and relatedly earnings, vary systematically across age at immigration with those arriving around age 15 to 18 obtaining fewer years of education. JEL Classification: J61, J31Revenus des immigrants: l'âge auquel on immigre porte à conséquence. On observe une corrélation entre l'âge auquel on immigre et les niveaux de revenu dans les données de recensement au Canada. Les résultats soulignent trois sources d'explication pour cette relation: d'abord, l'expérience de travail dans le pays d'origine semble engendrer des rendements presque nuls dans le pays d'accueil; ensuite, les rendements sur l'investissement en éducation varient avec l'âge auquel on émigré; et enfin, on observe un effet d'acculturation chez les immigrants qui sont membres de minorités visibles ou pour lesquels l'anglais n'est pas la langue maternelle. On montre aussi que le niveau d'éducation et les niveaux de revenus qui en découlent varient systématiquement selon l'âge auquel on immigre, et que ceux qui immigrent autour de 15 à 18 ans sont ceux qui atteignent le niveau d'éducation le moins grand.

A cross-validation of the Karnofsky Performance Status (KPS) and quality of life (QOL) as measured by item 30 of the quality of life questionnaire developed by the European Organization for Research and Treatment of Cancer Study Group (EORTC QLQ-C30) was conducted using ordered logit analysis and prospective data from a continuous sample of 139 lung cancer patients. The QOL is found to be a much broader concept than the KPS, since it likely captures not only physical functioning but also functioning in the non-physical dimensions of social, emotional, and possibly cognitive well-being as well as the level of distress in the physical dimensions of pain, breathing and fatigue. These results suggest that the palliative treatment of advanced cancer and the terminally ill should be guided by a broad concept of well-being that goes beyond one based only on physical functioning.

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