In the Economics of Schooling Literature, Input Substitutions Have Been Identified As the Major Difficulty to Assess School and Teacher Effectiveness. in This Paper We Examine Whether Teachers' Grading Practices Can Improve Students Academic Achievement by Reducing These Input Substitutions. We...

In recent years the aircraft industry in Canada has experienced a decline in output. As a consequence there have been major lay-offs of employees who have had to find employment in other activities. All workers have not had the same difficulties in finding alternative employment when released...

Previous studies on the determinants of the choice of college major have assumed a constant probability of sucess across majors or a constant earnings streamacross majors. Our model disregards these two restrictive assumptions in computing an expected earnings variable to explain the probability...

Underdeclarations Are Typical When Alcohol, Tobacco and Gambling Consumptions Are Questioned in Surveys. Recent Surveys on Expenditures on Lotteries Have Similar Problems: the Declared Expenditures Equal Between 60 to 65 Percent of the Revenues of the Various State-Run Lottery Entreprises. by...