A person with low vision has some useful sight. However, low vision usually interferes with the performance of daily activities such as reading or driving. Because low vision cannot be improved by mere traditional methods (i.e., the use of eyeglasses, contact lenses, etc), persons with low vision often rely on the use of a number of different instruments, called low vision devices, and tailored...

I analyze an original dataset on the display inventories of several hundred eyewear retailers to study how firms’ product-range choices depend on separation from rivals in geographically-differentiated markets. A two-stage estimation approach is used, employing Seim’s (2002) structural entry model for firms’ first-stage location choices, followed by reduced-form store-level variety regressions....

I still prefer to consider myself a young academic turk. Nonetheless, the graying hair and beard that confront me in the mirror each morning—both easily discernible without eyeglasses—suggest otherwise. Rather than bemoan my journey to decrepitude, I choose to embrace my self-declared elder-statesman status by exploiting the one accommodation typically extended to senior academicians: to commen...

This extended abstract outlines a new study that investigates spatial language for use in human-robot communication. The scenario studied is a home setting in which the elderly resident has misplaced an object, such as eyeglasses, and the robot will help the resident find the object. We present preliminary results from the initial study in which we investigate spatial language generated to a hu...