For years, managers assumed that the best way to take advantage of opportunities abroad was to ally with local companies. But a fundamental shift in the cost/benefit equation has led businesses to forgo partnerships in favor of owning foreign affiliates outright.

In response to Stanley Work's announcement that it is moving to Bermuda--and the associated jump in market value--a major competitor sets out to determine how the market is valuing the consequences of moving to a tax haven and whether his company should invert to a tax haven. In particular, the competitor's CFO needs to attribute Stanley's stock price movements across several dimensions of potential tax savings (tax savings on foreign operations and on interest payments) to see if there might be something else at play (earnings stripping). In the process, the mechanics and incentives created by the international tax regime are illustrated. To obtain executable spreadsheets (courseware), please contact our customer service department at [email protected].