We briefly introduce the notion of Semantically Enhanced Library Languages, SELL, as a practical and economical alternative to special-purpose programming languages for high-performance computing. Then we describe the Pivot infrastructure for program analysis and transformation that is our main tool for supporting SELL. Finally, we outline how the IPR (The Pivot’s Internal Program Representatio...

It is not uncommon for surviving business owners to find that the heirs of the deceased business owner want to take on a role in the management of the business, even though the family members may have insufficient skills or experience to participate in the business, let alone, the management of the business. Perhaps, the surviving business owners want nothing to do with the deceased owner’s fam...

For a simple model of a stock, whose stock price is a geometric Brownian motion in which the drift rate changes back and forth between positive and negative values, optimal selling times are computed. An infinite optimal selling time meaning you should just hold the stock.

We study how institutional investors trade when firms buy back shares. We find that aggregate institutional ownership decline following share repurchase announcements. While some institutions sell shares passively to meet the firm demand for the market to clear, the overall institutional sell-off only accounts for 27% of shares bought back contemporaneously by firms. Many firms experience a net...

Do nonprofit hospitals sell at a discount compared to for-profit hospitals? This question stems from public concerns about the underpricing of nonprofits, and raises important questions about the nature of nonprofit firms, their objectives, and their managerial efficiency. We address this question using a database of hospital sales prices and find that, contrary to the prevailing wisdom, nonpro...