For mitigating the problems of transfer pricing formula apportionment (FA) is discussed intensively. However, FA could even be more harmful than transfer pricing because income shifting would require changing economic decisions instead of just taking advantage of accounting options. We analyze the impact of different international tax allocation regimes on a corporate group's investment and production decisions. We show that FA offsets the advantages of decision decentralization as it reverses the separation of responsibilities. It is not clear whether FA is desirable from a fiscal or an entrepreneurial perspective. The effects of FA compared to transfer pricing depend strongly on the parameter setting under consideration, especially the decision procedure within corporate groups.

ABSTRACT We study a disclosure decision for a firm's manager with many sources of private information. The presence of multiple numerical signals provides the manager with an opportunity to hide information via aggregation, presenting net amounts in order to show information in its best light. We show that this ability to aggregate fundamentally changes the nature of voluntary disclosure, due to the market's inability to verify that a report is free of strategic aggregation. We find that, in equilibrium, the manager fully discloses if and only if the manager's private information makes the firm look sufficiently weak. By separating bad news from good news, a disaggregate report informs the market of as much offsetting news as possible, revealing how close the news is to a neutral benchmark. The result is, therefore, pooling at the top and separation at the bottom, the opposite of what transpires with a single news source. JEL Classifications: M41; D82; D83.