Comparative Statics, tracking an optimal or equilibrium value as an exogenous variable changes, ceteris paribus, is the heart of economic analysis. By building models and analyzing the comparative ...

Allochthonous inputs act as resource subsidies to many ecosystems, where they exert strong influences on metabolism and material cycling. At the same time, metabolic theory proposes endogenous thermal ...

This is a preview. Log in through your library . Abstract This paper derives the exact probability density function of instrumental variable estimators of the coefficient vector of the endogenous ...

Last week, Matt Yglesias wrote a piece arguing that Republican harping on high gas prices is unlikely to much damage Barack Obama. The fundamental point of the piece is that gas prices are endogenous: ...

THE use of mannitol for osmotic diuresis has largely been confined to the laboratory and has so far had only limited clinical application. Recently, however, its clinical usefulness in the diagnosis ...

In the opaque silence of the forest floor, fungi are hard at work. As the forest’s digestive system, they excrete acids and enzymes that orchestrate the slow churn of organic matter with the help of ...