## Robustness, Sensitivity, Reanalysis

Suppose famed researchers Steve and Jake are in the following situation:

### Goal

Assess the loss of efficiency to Steve of re-analyzing Jake's data
instead of conducting his own experiment.

### Approach

- Generate the allocation rule for each method (OS, BF, EA, HP, MP)
using Jake's prior, but compute the risk using Steve's prior (i.e.,
Steve reuses Jake's data)
- Generate and evalatuate the allocation rule for each method using
Steve's prior (i.e., Steve conducts his own experiment)
- Define the
**relative efficiency** of each method to be the ratio
of the risk of that method from (2) to the risk of the method from (1).

Note that an extremely large number of computations will be performed, since
this will be done for many methods and many priors.

Robustness Results
Outline
Further Results