Finance and Financial Management Commons^™

Twitter Sentiment Analysis: Applications In Healthcare And Finance, Jiali Wang

Dissertations

This research explores the influence of Twitter sentiment on healthcare and finance industries. It assesses how Twitter sentiment and culture measure influence COVID-19 statistics, and it investigates the impact of Twitter sentiment on S&P 1500 stock mispricing. Furthermore, it examines how tweet sentiment predicts major industry returns.

The first part examines how Hofstede’s Culture Dimensions (HCD) and Twitter economic uncertainty index (TEU) relate to COVID-19 infection rate and death rate. The results show certain aspects in HCD, such as power distance index (PDI) and masculinity (MAS) both are negatively and significantly associated with the infection rate, while indulgence (IVR) and …

Representation Learning In Finance, Ajim Uddin

Dissertations

Finance studies often employ heterogeneous datasets from different sources with different structures and frequencies. Some data are noisy, sparse, and unbalanced with missing values; some are unstructured, containing text or networks. Traditional techniques often struggle to combine and effectively extract information from these datasets. This work explores representation learning as a proven machine learning technique in learning informative embedding from complex, noisy, and dynamic financial data. This dissertation proposes novel factorization algorithms and network modeling techniques to learn the local and global representation of data in two specific financial applications: analysts’ earnings forecasts and asset pricing.

Financial analysts’ earnings forecast …

How Could Venture Capitalists Improve Their Performance At Fund Management Level Via Better Allocating Their Financial And Human Capitals - A Cross-Fund Approach, Fei Han

Dissertations

Venture capitalists’ performance has been studied at the levels of portfolio company and fund. But no similar study at the fund management entity level has been documented. This study fills in the gap to examine the drivers of the venture capitalists’ performance at the fund management entity level. This study uses the capital allocation theory to develop five hypotheses on its performance. Each of them embodies an aspect of the feature of capital allocation in the venture capital investment process. With an expanded concept of capital for capital allocation, this study examines the allocation of both the financial capital and …