We use the geographic distance between a doctor’s office and drug company headquarters to instrument for the likelihood of pecuniary transfers, such as meals or speaking fees. Doctors tilt prescriptions in favor of the paying firm’s drugs, shifting away from both branded and generic substitutes. Larger transfers cause larger shifts in prescriptions. We explore two potential explanations: 1) per...

We use the popular television show Mad Money hosted by Jim Cramer to test theories of attention and limits to arbitrage. Stock recommendations on Mad Money constitute attention shocks to a large audience of individual traders. We find that stock recommendations lead to large overnight returns which subsequently reverse over the next few months. The spike-reversal pattern is strongest among smal...

Article history: Received 17 June 2008 Communicated by B. Conrad MSC: primary 14K02 secondary 11E10

Matters Arising diagnosed for less than three weeks), and four healthy Retroviral Superantigens and Type 1 adult controls. All subjects were of Caucasoid extrac-Diabetes Mellitus tion. RT-PCRs, with the Conrad et al. (1997) protocol and reagents, generated a band of the expected size (489 bp) for IDDMK 1,2 22 with U3-R-poly(A) primer from In 1994, Conrad et al. reported initial results that rek...

The finite difference method represents a highly straightforward and logical approach to approximating continuous problems using discrete methods. At its heart is a simple idea: substitute finite, discrete differences for derivatives in some way appropriate for a given problem, make the time and space steps the right size, run the difference method, and get an approximation of the answer. Many ...

This essay aims to stimulate reflection on the creativity characterising homo sapiens in different realms which it occurs. Over recent decades scholarly research into has extended original concept, restricted geniuses, a broader field that encompasses qualities and abilities of every individual, line with democratisation creative act. However, aim this contribution is illustrate referring examp...