Of course, happiness research is still new. Many questions remain unexplored, some studies lack sufficient confirmatory evidence, and still others, like those involving the effects of economic growth, have yielded conflicting results.
当然，对幸福感的研究依然是个崭新的学术领域。许多问题还有待探究，许多研究还缺乏足够的实证支撑，而其他方面的研究，包括经济增长对幸福感所产生的效应，则得出了互相冲突的结论。