Headquarters,office employment,and the wave of urbanization in the New York City region

Hierarchical theory suggests that high-density office activity, such as corporate headquarters, epitomizes the concept of agglomeration. This research tests whether office employment in a metropolitan area agglomerates around suburban nodes of specialized office and corporate headquarter activity or if office employment change shifts in response to the wave of urbanization. The location of the Fortune 500 manufacturing and service headquarters and the ratio profiles of office employment within each county are used in the test. We conclude that headquarters are not located in specialized office employment nodes. Rather, the office employment becomes specialized as the county becomes more urbanized.     

Stock liquidity and corporate tax avoidance

We show that firms with higher stock liquidity engage less in extreme (i.e., overly aggressive or overly conservative) tax avoidance. The effect of stock liquidity on tax avoidance is economically meaningful and robust across alternative measures of tax avoidance and stock liquidity. The findings also hold after controlling for potential endogenous effects. We further document that the effect of stock liquidity on tax avoidance is amplified for firms with high proportions of activist shareholders and attenuated for firms with high levels of stock price informativeness. Overall, our findings suggest that stock liquidity mitigates extreme tax avoidance by enhancing shareholders’ monitoring over firm management.

     

Diversification and risk-adjusted performance: A quantile regression approach

The effect of diversification on firm performance has been debated. We reexamine the effect using a sample of 44,248 observations of non-financial US firms for the 1997–2009 period employing the quantile regression approach. Our empirical results show that the effect of diversification on firm performance is not homogeneous across various quantile levels: the diversification discount (premium) shows up in firms with high (low) RoE quantiles. Further, we find that diversification affects firm risk as well. Therefore, we consider a risk-adjusted performance measure and find that both diversification discount and premium disappear, which is consistent with the risk-return trade-off principle.     

Peruco: A Method for Producing Safe and Consistent Microdata

A new method for protecting microdata is introduced. This method, per turbation of u nsafe co mbinations (Peruco), eliminates unsafe combinations in the records in which they occur, by replacing them with safe combinations that are also consistent with the other values in the remainder of the records. Consistency is relative to a set of micro-edits that is supposed to be given along with the microdata. A deterministic optimization model is discussed, as well as possible extensions.