We analyse the influence of climate on average life satisfaction in 87 countries using data from the World Values Survey. Climate is described in terms of 'degree-months' calculated using an optimally-selected base temperature of 65°F (18.3°C). Our results suggest that countries with climates...

We examine whether the sorting of differently achieving students into differently sized classes results in a regressive or compensatory pattern of class sizes for a sample of national school systems. Sorting effects are identified by subtracting the causal effect of class size on performance...