this question empirically is to decompose the variance in firm-level profitability into firm, industry, location, and year … have examined the nature of differences in firm profitability. We conduct a meta-regression and variance decomposition …

In this paper we present estimates of the world profit rate using country-level data from the Extended Penn World Table … 7.0 and industry-level data from the World Input Output Database. The country-aggregated world profit rate series spans … the period from 1960 to 2019, and the industry-aggregated world profit rate series runs from 2000 to 2014. The country …

delta-hedged calls are negatively correlated with current stock price, firm profit margin and profitability, but positively …We uncover new return predictability in the cross-section of delta-hedged equity options. Expected returns of writing … have little explanatory power. We examine the economic channels underlying option return predictability …