A model is introduced to answer three questions pertaining to site-specific nutrient management in production of orchard crops: which input factors of crop production are limiting yield; what action should be taken to remove the limiting factors; and what is the potential gain in revenue from...

We employ a standard identification strategy from the peer effects literature to investigate the importance of network definitions in estimation of endogenous peer effects. We use detailed information on friends in the National Longitudinal Study of Adolescent Health Survey (Add Health) to...