This dissertation explains the puzzling negative relationship between changes in stock volatility and credit spreads of corporate bonds. This relationship has been encountered in some empirical studies but has remained unexplained in the theoretical literature, which unanimously suggests the opposite relationship. This dissertation shows that this negative relationship can be produced by the dynamic endogenous asset composition of borrowing firms. On the one hand, higher asset volatility corresponds to lower future volatility of the firm's investments and lower credit spreads if the firm can reallocate resources optimally. On the other hand, short-term stock volatility corresponds to the current allocation of resources and thus increases with asset volatility. The combination of these two effects produces the negative relationship between changes in stock volatility and credit spreads. The empirical part of the dissertation shows that the relationship between changes in stock market volatility and credit spreads of long-term, high-quality corporate bonds (controlling for other variables) is negative, robust, and economically significant. Consistent with the predictions in this dissertation, the corresponding regression coefficient is a U-shaped function of the credit quality of the bonds. In addition, the dissertation shows that the relationship changes its sign in distressed market conditions and that a combination of normal and distressed market conditions can produce erroneous results.

This dissertation focuses on institutional investors in corporate bond markets and their impacts on the underlying corporate bonds. The dissertation is composed of three chapters. The first chapter studies how information networks of corporate bond mutual funds may be constructed. It highlights how information flow between corporate bond mutual funds affects fund performance, herding behaviors, and the underlying corporate bond market. By examining the trading behavior of corporate bond mutual funds, I show that bond funds in more central positions of a trading network have an informational advantage that results in 0.33% higher future fund risk-adjusted return. This positive relationship becomes stronger during periods of high market uncertainty and for bond funds with more liquid assets as they can respond to the information signal with a lower asset reallocation cost. I further show that manager turnover, ranking pressure, and fund flow fluctuation drive within-fund time varying changes in network centrality. The second chapter exploits the influence of information networks of corporate bond mutual funds on their underlying corporate bonds. I show that corporate bonds owned by highly network-central bond funds increase underlying liquidity, leading to a 3.5% decrease in future bid/ask spreads and a lower Amihud illiquidity measure. This is hypothesized to occur due to increased information efficiency, which allows for more bond specific information to be reflected in the price, and intensified herding behavior. Moreover, I construct a network to represent herding behavior by following the same trades across quarters. A 0.3% decrease in risk-adjusted fund return is found for bond funds that have the strongest herding behavior. The third chapter studies how corporate bond exchange-traded funds (ETF) impact the underlying corporate bond return comovement and how it relates to trading and arbitrage activities of corporate bond ETFs. The literature is silence about the effect of corporate bond ETFs on the comovement of underlying bond securities. This chapter aims to fill this gap by providing the first empirical evidence of bond return comovement driven by bond ETFs ownership. I find that bond ownership by corporate bond ETFs leads to higher bond return comovement, an increase of 0.26 in the beta of corporate bond return with respect to the aggregate bond portfolio. In contrast, bond ownership by other traditional institutional investors in the corporate bond market like bond mutual funds and insurance companies do not contribute to corporate bond return comovement. Furthermore, this chapter highlights that return comovement is driven by corporate bond ETFs’ creation and redemption activities.

We examine recovery rates of defaulted bonds in the US corporate bond market, based on a complete set of traded prices and volumes. A study of the trading microstructure around various types of default events is provided. We document temporary price pressure with high trading volumes on the default day and the following 30 days, and low trading activity thereafter. Based on this analysis, we determine market-based recovery rates and quantify various liquidity measures. We study the relation between the recovery rates and these measures, considering additionally a comprehensive set of bond characteristics, firm fundamentals, and macroeconomic variables. (authors' abstract)

In this paper, we model price dispersion effects in over-the-counter (OTC) markets to show that, in the presence of inventory risk for dealers and search costs for investors, traded prices may deviate from the expected market valuation of an asset. We interpret this devia- tion as a liquidity effect and develop a new liquidity measure quantifying the price dispersion in the context of the US corporate bond market. This market offers a unique opportunity tofstudy liquidity effects since, from October 2004 onwards, all OTC transactions in this marketfhave to be reported to a common database known as the Trade Reporting and CompliancefEngine (TRACE). Furthermore, market-wide average price quotes are available from MarkitGroup Limited, a financial information provider. Thus, it is possible, for the first time, to directly observe deviations between transaction prices and the expected market valuation of securities. We quantify and analyze our new liquidity measure for this market and find significant price dispersion effects that cannot be simply captured by bid-ask spreads. Wefshow that our new measure is indeed related to liquidity by regressing it on commonly-usedfliquidity proxies and find a strong relation between our proposed liquidity measure and bond characteristics, as well as trading activity variables. Furthermore, we evaluate the reliability of end-of-day marks that traders use to value their positions. Our evidence suggests that the price deviations from expected market valuations are significantly larger and more volatile than previously assumed. Overall, the results presented here improve our understanding of the drivers of liquidity and are important for many applications in OTC markets, in general. (authors' abstract)

Thesis advisor: Pierluigi Balduzzi / Thesis advisor: Jonathan Reuter / In the first essay of this dissertation, I study the impact of fund redemptions and resulting sell-offs on corporate bond yields. To control for unobserved changes in fundamentals, I study within-issuer variation of yield changes, resulting from differential exposure to redemptions and sell-offs. In contrast to previous findings for equity funds, I find no evidence indicating that bond funds destabilize the corporate bond market by moving prices beyond fundamental values. I attribute this finding to bond fund management. Although I find that investors demonstrate a bank-run like behavior, which is a potential source of destabilization, bond fund managers hold a significant level of liquid assets, allowing them to manage redemptions without excessively liquidating corporate bonds. Second essay of this dissertation looks at corporate bond Exchange Traded Funds (ETFs) which are a new form of financial innovation. Since these investment vehicles are relatively new, little is known about their risks. In this paper, we study an event in the summer 2013, knows as the Taper Tantrum, when bond ETFs and mutual funds experienced massive unexpected outflows due to speculations about interest rate hikes. We find that ETF outflows during the Taper Tantrum lead to a significant increase in exposed corporate bond yields. The increase in yields lasts for seven months, which indicates a temporary fire sale effect. In contrast, we find no fire sale effect resulting from mutual fund outflows. We attribute this contrasting finding between the two vehicles to differences in portfolio construction and investor sensitivities. Finally, we study arbitrage opportunities, created by ETF shares mispricing, and their impact on bond yields. Third essay of this dissertation is about liquidity in the corporate bond market. In market distress, corporate bond investors tend to sell liquid assets and hold onto illiquid ones, a phenomenon which we call flight to illiquidity. We study the impact of flight to illiquidity on corporate bond prices/yields in cross-section as well as corporate bond returns in time-series. First, we show that liquidity price premium disappears in market distress, meaning that liquid bonds are not more expensive than illiquid bonds in distress times. Second, we show that illiquiduity return premium which exists during normal times, not only does not change sign or disappears, but also widens in market distress. In other words, liquid bonds deliver a lower return both on average and during market distress. This pattern is limited to investment grade corporate bonds. Our findings suggest that keeping the credit risk fixed, liquid bonds do not provide safety during the time it is needed the most. / Thesis (PhD) — Boston College, 2016. / Submitted to: Boston College. Carroll School of Management. / Discipline: Finance.

Thesis advisor: Jeffrey Pontiff / The first essay of this dissertation studies the effect of Exchange Traded Funds (ETFs) on the yields and liquidity of the underlying corporate bonds. I find that ETFs lower the yield, have an insignificant or negative impact on the liquidity, and decrease the retail volume of constituent bonds. Overall, these results support theoretical predications that basket securities entice liquidity traders to exit the underlying market. The second essay analyzes the role of ETFs in mutual fund families and is joint work with Harold Spilker. We study mutual fund and ETF twins - index funds from the same family that follow the same benchmark. Mutual fund twins are shown to have lower tax burdens, long-term capital gains yields, and unrealized capital gains. Conversely, ETF twins have higher long-term yields and unrealized capital gains, but are compensated with lower expense ratios. Fund families benefit because twin offerings generate higher flows than their non-twin peers. These results support previous research that mutual fund families use diversification and subsidization to benefit the overall family. The third essay provides academics with a detailed understanding of the history, structure, regulation, and prospects of ETFs. The essay documents that the growth of index investing can largely be attributed to ETFs. The information and nuances discussed provide a baseline for developing future research questions and data. / Thesis (PhD) — Boston College, 2015. / Submitted to: Boston College. Carroll School of Management. / Discipline: Finance.

Over the past decade, numerous engineered credit events and cases of market participants manipulating bond prices to influence Credit Default Swap (CDS) auction payouts have occurred. These cases have become increasingly common, and the CFTC has stated they may constitute market manipulation and undermine not only the CDS market but also the credit derivative and default markets. Although there is a plethora of news and media coverage on publicized cases, there is no previous empirical research on evidence of these practices. This paper is motivated by the desire to determine if there is indirect evidence of bond price manipulation around default and of market participants’ attempts to favorably move CDS’s underlying bond prices to achieve more profitable positions around default and emerging from CDS auctions. The analysis is performed by analyzing the effect of a bonds’ inclusion in CDS auctions on bond return volatility around the time of default while controlling for credit risk, illiquidity, firm fundamentals, and other bond-level controls. I find that bond return volatility around default is much higher as a result of a bond’s inclusion in a CDS auction, which serves as indirect evidence of bond price manipulation around default as market participants strive for more profitable CDS auction outcomes and possibly of manufactured credit events. Consistent with previous literature, I also find that bond illiquidity significantly impacts bond return volatility. My results are robust to propensity score matching, implementing double-robust estimators, and controlling for any time-varying cross-sectionally-invariant fluctuations in bond return volatility.

The thesis builds a model for pricing the liabilities of a firm. The liabilities - stocks, loans, bonds - fundamentally all depend on the value of the firm's assets. By looking at balance sheet data, such as the nominal amount of debt outstanding, and market prices, such as time series of stock prices, the value and volatility of the assets can be estimated. Finally, e.g. bank loans to the same firm can be priced in terms of these values. Thus, the purpose of the whole exercise is to use the information content in stock prices to infer the value of loans. / Diss. Stockholm : Handelshögsk.

The long-term external financing of a corporation is satisfied through the bond market where issues of index-linked bonds, which are discussed in this thesis, is one alternative. (Finnerty&Emery 2001) An index- linked bond is a debt instrument where the investor is guaranteed the principal and premium amount in real terms. As the bonds cash flows are indexed to the inflation this implies that the issuer of an index-linked bond assumes an inflation risk. Purpose: The purpose of this thesis is to describe and examine corporate motives for choosing index-linked bonds as way of financing their business. Realization: Primary data was collected through interviews with corporate issuers of non-swapped index-linked bonds. Results: From our research it has been acknowledged that both internal and external factors determine the decision to issue index-linked bonds. The most important internal reason for the issuance was that this type of financing implies matching advantages, which helps lowering the companies’ risks. This is achieved by balancing the size and time of the cash inflows with the cash out- flows. Of the external factors we found that it is primary the financing cost that is of interest. The cost savings are primarily achieved because of the lower liquidity premium demanded when using index-linked bonds as a way of financing the business. We believe that this depends partly on the character of the investors and on market imperfections.

<p>The long-term external financing of a corporation is satisfied through the bond market where issues of index-linked bonds, which are discussed in this thesis, is one alternative. (Finnerty&Emery 2001) An index- linked bond is a debt instrument where the investor is guaranteed the principal and premium amount in real terms. As the bonds cash flows are indexed to the inflation this implies that the issuer of an index-linked bond assumes an inflation risk. Purpose: The purpose of this thesis is to describe and examine corporate motives for choosing index-linked bonds as way of financing their business. Realization: Primary data was collected through interviews with corporate issuers of non-swapped index-linked bonds. Results: From our research it has been acknowledged that both internal and external factors determine the decision to issue index-linked bonds. The most important internal reason for the issuance was that this type of financing implies matching advantages, which helps lowering the companies’ risks. This is achieved by balancing the size and time of the cash inflows with the cash out- flows. Of the external factors we found that it is primary the financing cost that is of interest. The cost savings are primarily achieved because of the lower liquidity premium demanded when using index-linked bonds as a way of financing the business. We believe that this depends partly on the character of the investors and on market imperfections.</p>