An inventory decision model is considered whereby the demand for the item, the stock in hand and the lead time period are considered to be random variables. The interrelationships of these three item characteristics are then studied in the framework of a scheme for deciding when to place an...

This study introduces a novel index based on expectations concordance for explaining stock-price volatility when novel events that are each somewhat unique cause unforeseeable change and Knightian uncertainty in the process driving outcomes. Expectations concordance measures the degree to which...

We study the relation between equity market uncertainty and the informational efficiency of U.S. equity prices, proxied by the SPDR S&P 500 Trust ETF. Using the Baker, Bloom, and Davis (2016) equity market uncertainty index, we document a negative relation between market uncertainty and...