What types of policy intervention had a greater impact during the financial crisis? By using a detailed dataset of worldwide policy, we answer this question focusing on Global Systemically Important banks (G-SIBs), looking both to stock returns and Credit Default Swap (CDS) spreads reactions. As robustness checks, we also analyze a control sample of 31 large Non-Financial Companies (NFCs). Overall, we show that different policy interventions from governments and central banks have produced diverse market reactions: investors generally appreciate monetary policy interventions for G-SIBs (but not for NFCs) and do not welcome bank failures and bailouts (for both G-SIBs and NCFs

Based on a reduced-form model of credit risk, we explore mispricing in the credit default swaps (CDS) spreads of North American companies and its economic content. Specifically, we develop a trading strategy using the model to trade out of sample market-neutral portfolios across the term structure of CDS contracts. Our empirical results show that the trading strategy exhibits abnormally large returns, confirming the existence and persistence of a mispricing. The aggregate returns of the trading strategy are positively related to the square of market-wide credit and liquidity risks, indicating that the mispricing is more pronounced when the market is more volatile. When implemented on the Markit data, the strategy shows significant economic value even after controlling for realistic transaction costs

We evaluate the effects of three European Central Bank (ECB) policies (the Securities Markets Programme (SMP), the Outright Monetary Transactions (OMT), and the Long-Term Refinancing Operations (LTROs)) on government bond yields. We use a novel Kalman-filter augmented event-study approach and yields on euro-denominated sovereign bonds, dollar-denominated sovereign bonds, corporate bonds, and corporate credit default swap (CDS) rates to understand the channels through which policies reduced sovereign bond yields. On average across Italy, Spain and Portugal, considering both the SMP and the OMT, yields fall considerably. Decomposing this fall, default risk accounts for 37% of the reduction in yields, reduced redenomination risk for 13%, and reduced market segmentation effects for 50%. Stock price increases in distressed and core countries suggest that these policies also had beneficial macro-spillovers

Empirical studies of structural credit risk models so far are often based on calibration, rolling estimation, or regressions. This paper proposes a GMM-based method that allows us to estimate model parameters and test model-implied restrictions in a unified framework. We conduct a specification analysis of five representative structural models based on the proposed GMM procedure, using information from both equity volatility and the term structure of single-name credit default swap (CDS) spreads. Our test results strongly reject the Merton (1974) model and two diffusion-based models with a flat default boundary. The other two models, one with jumps and one with stationary leverage ratios, do improve the overall fit of CDS spreads and equity volatility. However, all five models have difficulty capturing the dynamic behavior of both equity volatility and CDS spreads, especially for investment-grade names. On the other hand, these models have a much better ability to explain the sensitivity of CDS spreads to equity returns