Does distrust in politically affiliated media induce a bias in investor beliefs? We study the acquisition of Dow Jones & Co. by News Corporation in 2007 as a shock to the political affiliation of Dow Jones outlets. Following the acquisition, the prices of Republican- (Democrat-) aligned stocks become less sensitive to favorable (unfavorable) Dow Jones Newswires (DJNW) sentiment, consistent with the market attaching less credibility to a politically affiliated source. There is, however, no evidence of change in DJNW sentiment, coverage, or language about Republican/Democrat stocks, suggesting a loss of stock price informativeness. Consistent with this view, a portfolio exploiting the attenuated reaction to DJNW news earns abnormal returns following 2007.

This is a first attempt to study how the structure of the industry affects mutual fund behavior. I show that industry structure matters; the mutual fund families employ strategies that rely on the heterogeneity of the investors in terms of investment horizon by offering the possibility to switch across different funds belonging to the same family at no cost. I argue that this option acts as an externality for all the funds belonging to the same family, affecting the target level of performance the family wants to reach and the number of funds it wants to set up. By using the universe of the U.S. mutual fund industry, I empirically confirm this intuition. I find evidence of family driven heterogeneity among funds and show that families actively exploit it. I argue that the more families are able to differentiate themselves in terms of non-performance-related characteristics, the less they need to compete in terms of performance. Product differentiation—i.e., the dispersion in the “services” (fees, performance) that the competing funds offer—affects performance and fund proliferation. In particular, I show that the degree of product differentiation negatively affects performance and positively affects fund proliferation.

We study the effects of financial innovation in a model of endogenous information acquisition. We determine the conditions under which the introduction of a derivative written on an existing stock increases or decreases the incentive to purchase information. We show that financial innovation produces some effects which hold across informational structures and others which differ. The former coincide with the few empirical results that are robust in the literature (effects on prices, risk premia, and volatility), while the latter coincide with the ones that differ experiment by experiment (effects on volume, correlation between volume and volatility, and market informational efficiency).

By using a unique data set on the organizational structure of fixed-income portfolio managers, that is, mutual funds and insurance companies, we study the effects of organizational hierarchy within a fund management team on bond investing. We document that team hierarchies reduce the portfolio managers’ incentive to collect and share soft information. Funds with multiple hierarchies invest less in bonds of local firms, hold less concentrated portfolios, and herd more with the market. Overall, they deliver lower portfolio performances. We also show that changes in fund hierarchy subsequently find their way into fund behaviors.

We study how information flows within financial conglomerates by analyzing the relations between mutual funds and banks that belong to the same financial group. We investigate the effect that the lending behavior of affiliated banks has on the portfolio choice of the mutual funds that are part of the same group. We show that funds (fund families) increase their stakes in the firms that borrow from their affiliated banks in the period following the deal by far greater amounts than other unaffiliated funds (fund families). We provide evidence that this strategy is information-driven. The performance of the positions of affiliated funds in the stocks of borrowing firms exceeds that of their other positions in nonborrowing stocks located in the same industry as well as that of other stocks having similar characteristics by up to 1.6% per month. Funds increase (decrease) their stock holdings in those borrowing stocks that subsequently provide positive (negative) abnormal returns, suggesting that they exploit privileged inside information not available to other market participants. This behavior is prevalent largely in funds located in close geographic proximity to their lending banks. Furthermore, it is exhibited mostly by young, small, and poorly performing fund families. Our evidence points to information flows within conglomerates through informal channels such as personal acquaintances.

We study how a firm's decision to offer bonds of various maturities affects the portfolio allocations of institutional investors. We argue that because of lower information-collection costs, institutional investors tilt their portfolios towards firms that offer bonds of various maturities. We show that this translates into lower bond yields, both in the primary and in the secondary bond markets.

Commercial banks acquire inside information about the firms they lend to. We study the impact of this informationally privileged position on the borrowing firm using a broad panel of U.S. firms over the 1993–2004 period. We measure the strength of the bank-firm relationship by bank-firm proximity, size of the loan, and the lender's insider potential. We show that a stronger relationship, by inducing better monitoring, improves the borrower's corporate governance. Simultaneously, it makes the bank a potentially more informed agent in the equity market. This information asymmetry increases adverse selection for the other market participants and lowers the firm's stock liquidity. This trade-off between improved corporate governance and greater information asymmetry affects the firm's value. Our results have normative implications for the role of banks in the development of financial markets.