Information Propagation in Financial Markets

This dissertation consists of three essays which examine information flows through financial markets and across firms, and investigates the factors affecting the process of information dissemination. The first essay examines whether the announcement of a credit rating change for a given firm contains information pertinent to the valuations of intra-industry peer firms. I identify an information spillover effect on peer firms surrounding credit rating downgrades. Further, I find that the post-announcement spillover effects are indicative of an overreaction in the market’s response to the downgrade announcement. Peer firms exhibit predictability in their post-announcement returns as a function of their relative transparency. The second essay explores the relation between instances of credit rating initiations and stock market liquidity. Traditional finance literature holds the view that liquidity is impaired as a function of information asymmetry. Additionally, that credit ratings have been shown to reduce information asymmetry. This study uses instances of new credit ratings to examine the change in stock market liquidity surrounding the announcement of the new rating. My results suggest that rating initiations improve in the liquidity of the newly rated firm’s equity and that managers exploit this price support through seasoned equity offerings. The third essay investigates information flows through the Social networks of board members. I find that the degree to which a CEO and her directors overlap in Social communities affects the governance of the firm and that these effects are conditional upon the adverse reputation costs faced by the board. For firms whose boards face relatively lower (higher) potential adverse reputation costs to bad behavior, clustering is associated with poorer (better) governance and greater (lesser) expropriation by managers

Credit Ratings and the Cost of Issuing Seasoned Equity

I examine the effects of issuer credit ratings on the costs associated with seasoned equity offerings (SEOs). The evidence from a panel of SEOs from 1990 to 2014 shows that when firms issue seasoned equity, those with issuer credit ratings pay reduced investment banking fees. I confirm these results by conducting a propensity-score matched-sample comparison analysis of firms that obtain new, long-term issuer credit ratings with an unrated control group. Controlling for known determinants of SEO fees, I find that firms that obtain a new credit rating before issuing seasoned equity pay significantly reduced investment banking fees. In economic terms, underwriting fees for newly rated firms are 7.2% lower than those for similar, yet unrated firms. Finally, I examine the indirect costs of issuance and find evidence that credit-rated firms face reduced market-based costs to issue. Rated firms incur lower dilutionary costs to issue and have more positive abnormal returns surrounding the issue

In the interest of small business’ cost of debt: A matter of CSR disclosure

Traditional understanding is that small firms pay more in debt related expenses than larger firms with a history of financial performance. In the current study, we examine the impact that corporate social responsibility (CSR) disclosure has on the cost of debt for small firms. Using data from Bloomberg 2014 on CSR disclosure, we find that the cost of debt for small businesses decreases as firms increase their CSR disclosure transparency. Specifically, firms who disclose more social responsibility information faced reduced costs to debt financing. We argue that disclosure of Environment, Social, and Governance (ESG) records provide value relevant information for lenders to use to mitigate the magnified information asymmetry inherent to lending to firms earlier in their lifecycle. Our results suggest that disclosure of ESG information corresponds with improved information transparency, which leads to less costly debt for small businesses

Consideration Sets as Resources for Business Model Generation

Business models as outcomes for entrepreneurship are increasing in prevalence in pedagogy and practice. Instructors and entrepreneurs are focusing efforts on iterating potential ideas through a process of trial and error in hopes to produce working business models. However, such practices need to be better underpinned by theory so we can develop an understanding of how to identify more valuable opportunity ideas and how to progress them towards working business models with fewer trials and errors. This conceptual paper focuses on integrating extant conceptualisations of business models as interdependent activities with research on identifying opportunities as problem-solution pairings. While integrating those literatures, the present framework also details how reliance on constrained, systematic search—with its resource-based view underpinnings—can help individuals with entrepreneurial aspirations identify more valuable opportunities and progress them faster and with fewer trials and errors into working business models

Do Online Consumers Value Corporate Social Responsibility More in Times of Uncertainty?: Evidence from Online Auctions Conducted During the Onset of the COVID-19 Pandemic

The relationships between Corporate Social Responsibility (CSR) and consumer behaviors have been widely explored in the literature. From the consumer standpoint, it has been shown that individuals largely want to be socially responsible actors and that, more than ever, they consider the CSR aspects of products or services when contemplating purchasing decisions. We utilize data from 23,247 online auctions conducted before and during the COVID-19 pandemic to analyze in what way consumer preferences might be influenced by how the CSR characteristics of products are touted in their descriptions. We find that a greater CSR emphasis is positively associated with an increased prospect of an online auction item selling. Additionally, we find CSR is valued more by consumers during a period of economic hardship and social uncertainty (COVID-19). Finally, we find that profit-seeking behaviors by intermediary auction house brokers undermine the effect of CSR on consumer purchasing behavior

The James Webb Space Telescope Mission

Twenty-six years ago a small committee report, building on earlier studies, expounded a compelling and poetic vision for the future of astronomy, calling for an infrared-optimized space telescope with an aperture of at least $4m$. With the support of their governments in the US, Europe, and Canada, 20,000 people realized that vision as the $6.5m$ James Webb Space Telescope. A generation of astronomers will celebrate their accomplishments for the life of the mission, potentially as long as 20 years, and beyond. This report and the scientific discoveries that follow are extended thank-you notes to the 20,000 team members. The telescope is working perfectly, with much better image quality than expected. In this and accompanying papers, we give a brief history, describe the observatory, outline its objectives and current observing program, and discuss the inventions and people who made it possible. We cite detailed reports on the design and the measured performance on orbit.Comment: Accepted by PASP for the special issue on The James Webb Space Telescope Overview, 29 pages, 4 figure

Optimasi Portofolio Resiko Menggunakan Model Markowitz MVO Dikaitkan dengan Keterbatasan Manusia dalam Memprediksi Masa Depan dalam Perspektif Al-Qur`an

Risk portfolio on modern finance has become increasingly technical, requiring the use of sophisticated mathematical tools in both research and practice. Since companies cannot insure themselves completely against risk, as human incompetence in predicting the future precisely that written in Al-Quran surah Luqman verse 34, they have to manage it to yield an optimal portfolio. The objective here is to minimize the variance among all portfolios, or alternatively, to maximize expected return among all portfolios that has at least a certain expected return. Furthermore, this study focuses on optimizing risk portfolio so called Markowitz MVO (Mean-Variance Optimization). Some theoretical frameworks for analysis are arithmetic mean, geometric mean, variance, covariance, linear programming, and quadratic programming. Moreover, finding a minimum variance portfolio produces a convex quadratic programming, that is minimizing the objective function ðð¥with constraintsð ð 𥠥 ðandð´ð¥ = ð. The outcome of this research is the solution of optimal risk portofolio in some investments that could be finished smoothly using MATLAB R2007b software together with its graphic analysis

Search for heavy resonances decaying to two Higgs bosons in final states containing four b quarks

A search is presented for narrow heavy resonances X decaying into pairs of Higgs bosons (H) in proton-proton collisions collected by the CMS experiment at the LHC at root s = 8 TeV. The data correspond to an integrated luminosity of 19.7 fb(-1). The search considers HH resonances with masses between 1 and 3 TeV, having final states of two b quark pairs. Each Higgs boson is produced with large momentum, and the hadronization products of the pair of b quarks can usually be reconstructed as single large jets. The background from multijet and t (t) over bar events is significantly reduced by applying requirements related to the flavor of the jet, its mass, and its substructure. The signal would be identified as a peak on top of the dijet invariant mass spectrum of the remaining background events. No evidence is observed for such a signal. Upper limits obtained at 95 confidence level for the product of the production cross section and branching fraction sigma(gg -> X) B(X -> HH -> b (b) over barb (b) over bar) range from 10 to 1.5 fb for the mass of X from 1.15 to 2.0 TeV, significantly extending previous searches. For a warped extra dimension theory with amass scale Lambda(R) = 1 TeV, the data exclude radion scalar masses between 1.15 and 1.55 TeV

Measurement of the top quark forward-backward production asymmetry and the anomalous chromoelectric and chromomagnetic moments in pp collisions at √s = 13 TeV

Abstract The parton-level top quark (t) forward-backward asymmetry and the anomalous chromoelectric (d̂ t) and chromomagnetic (μ̂ t) moments have been measured using LHC pp collisions at a center-of-mass energy of 13 TeV, collected in the CMS detector in a data sample corresponding to an integrated luminosity of 35.9 fb−1. The linearized variable AFB(1) is used to approximate the asymmetry. Candidate t t ¯ events decaying to a muon or electron and jets in final states with low and high Lorentz boosts are selected and reconstructed using a fit of the kinematic distributions of the decay products to those expected for t t ¯ final states. The values found for the parameters are AFB(1)=0.048−0.087+0.095(stat)−0.029+0.020(syst),μ̂t=−0.024−0.009+0.013(stat)−0.011+0.016(syst), and a limit is placed on the magnitude of | d̂ t| < 0.03 at 95% confidence level. [Figure not available: see fulltext.

Search for Physics beyond the Standard Model in Events with Overlapping Photons and Jets

Results are reported from a search for new particles that decay into a photon and two gluons, in events with jets. Novel jet substructure techniques are developed that allow photons to be identified in an environment densely populated with hadrons. The analyzed proton-proton collision data were collected by the CMS experiment at the LHC, in 2016 at root s = 13 TeV, and correspond to an integrated luminosity of 35.9 fb(-1). The spectra of total transverse hadronic energy of candidate events are examined for deviations from the standard model predictions. No statistically significant excess is observed over the expected background. The first cross section limits on new physics processes resulting in such events are set. The results are interpreted as upper limits on the rate of gluino pair production, utilizing a simplified stealth supersymmetry model. The excluded gluino masses extend up to 1.7 TeV, for a neutralino mass of 200 GeV and exceed previous mass constraints set by analyses targeting events with isolated photons.Peer reviewe