Identifying the Incidence of "Grading on a Curve":A Within-Student Across-Subject Approach

Theoretical work shows that grading on a curve, i.e., teachers assessing students relativeto their classmates, can negatively affect students’ learning effort. However, little isknown about its empirical incidence. To overcome bias from non-random sorting andomitted variables like teachers’ grading standards, we exploit within-student acrosssubjectvariation observing both teacher-assigned grades and test scores of German4th-graders in reading and math. We find that having classmates with one standarddeviation higher test scores lowers a student’s grade by about 10 percent of a standarddeviation. Importantly, only female teachers grade on a curve and there is no associationbetween students’ learning effort and relative grading.Teacher grading, grading on a curve, learning incentives

Skills, Signals, and Employability

As skills of labor-market entrants are usually not directly observed by employers, individuals acquire skill signals. To study which signals are valued by employers, we simultaneously and independently randomize a broad range of skill signals on pairs of resumes of fictitious applicants among which we ask a large representative sample of German human-resource managers to choose. We find that signals in all three studied domains - cognitive skills, social skills, and maturity - have a significant effect on being invited for a job interview. Consistent with the relevance, expectedness, and credibility of different signals, the specific signal that is effective in each domain differs between apprenticeship applicants and college graduates. While GPAs and social skills are significant for both genders, males are particularly rewarded for maturity and females for IT and language skills. Older HR managers value school grades less and other signals more, whereas HR managers in larger firms value college grades more

The Value of Smarter Teachers: International Evidence on Teacher Cognitive Skills and Student Performance

Differences in teacher quality are commonly cited as a key determinant of the huge international student performance gaps. However, convincing evidence on this relationship is still lacking, in part because it is unclear how to measure teacher quality consistently across countries. We use unique international assessment data to investigate the role of teacher cognitive skills as one main dimension of teacher quality in explaining student outcomes. Our main identification strategy exploits exogenous variation in teacher cognitive skills attributable to international differences in relative wages of nonteacher public sector employees. Using student-level test score data, we find that teacher cognitive skills are an important determinant of international differences in student performance. Results are supported by fixed-effects estimation that uses within-country between-subject variation in teacher skills

Growing Up in Ethnic Enclaves

Does a high regional concentration of immigrants of the same ethnicity affect immigrant children's acquisition of host-country language skills and educational attainment? We exploit the exogenous placement of guest workers from five ethnicities across German regions during the 1960s and 1970s in a model with region and ethnicity fixed effects. Our results indicate that exposure to a higher own-ethnic concentration impairs immigrant children's host-country language proficiency and increases school dropout. A key mediating factor for this effect is parents' lower speaking proficiency in the host-country language, whereas inter-ethnic contacts with natives and economic conditions do not play a role

The Value of Smarter Teachers: International Evidence on Teacher Cognitive Skills and Student Performance

Differences in teacher quality are commonly cited as a key determinant of the huge international student performance gaps. However, convincing evidence on this relationship is still lacking, in part because it is unclear how to measure teacher quality consistently across countries. We use unique international assessment data to investigate the role of teacher cognitive skills as one main dimension of teacher quality in explaining student outcomes. Our main identification strategy exploits exogenous variation in teacher cognitive skills attributable to international differences in relative wages of nonteacher public sector employees. Using student-level test score data, we find that teacher cognitive skills are an important determinant of international differences in student performance. Results are supported by fixed-effects estimation that uses within-country between-subject variation in teacher skills

Weak Markets, Strong Teachers: Recession at Career Start and Teacher Effectiveness

How do alternative job opportunities affect teacher quality? We provide the first causal evidence on this question by exploiting business cycle conditions at career start as a source of exogenous variation in the outside options of potential teachers. Unlike prior research, we directly assess teacher quality with value-added measures of impacts on student test scores, using administrative data on 33,000 teachers in Florida public schools. Consistent with a Roy model of occupational choice, teachers entering the profession during recessions are significantly more effective in raising student test scores. Results are supported by placebo tests and not driven by differential attrition