Geographic diversification in real estate investment trusts
研究了2010至2016年美国权益型房地产投资信托中地理分散化与企业价值的非线性关系，发现透明度高的公司从分散化中获益，透明度低的公司则从集中化中获益，运营效率是价值实现途径。
Abstract Whether geographic diversification within property portfolios is ideal remains an open question, with most studies finding either a diversification discount or no evidence of benefits. Using a sample of equity real estate investment trusts (REITs) from 2010 to 2016, we find a nonlinear relation between geographic diversification and firm value. Specifically, geographic diversification is associated with higher REIT values for firms that can be described as being more transparent (i.e., they have high levels of institutional ownership or invest in core property types). Whereas, geographic concentration is associated with higher REIT values for firms that can be described as being less transparent (i.e., they have low levels of institutional ownership or invest in noncore property types). Operating efficiency, at both the property‐ and firm‐levels, are the means by which the diversification value is realized. Operations improve as property portfolios become more geographically diversified for more transparent firms. When the improvements are decomposed into revenue generation and expense efficiency portions, we find revenue generation to be the main operational channel through which the benefits are obtained.