An Analysis of How Twitter Impacts Financial Markets

In this paper, I examine how social media affects cryptocurrencies and more traditional stocks. I use data on Twitter posts in combination with daily stock prices to estimate the causal effect of a tweet on stock and coin prices. To do this, I use a difference-indifference regression with index funds as my control group, which allows me to capture general market trends that coins and stocks would follow if not for intervention. I find that tweets have a significant impact on cryptocurrencies that last up to three days after the post. The increase in coin prices is driven by tweets from Tyler Winklevoss and tweets about Tezos and Ethereum specifically. Meanwhile, Twitter posts have no impact on more traditional stocks. These results suggest that social media can provide the public with valuable information in real time for fast moving and volatile crypto assets, while their effects on more stable and institutionalized traditional stocks are more muted.

Do Index Funds Monitor?

Passively managed index funds now hold over 30$\%$ of U.S. equity fund assets; this shift raises fundamental questions about monitoring and governance. We show that, relative to active funds, index funds are less effective monitors: (a) they are less likely to vote against firm management on contentious governance issues; (b) there is no evidence they engage effectively publicly or privately; and (c) they promote less board independence and worse pay-performance sensitivity at their portfolio companies. Overall, the rise of index funds decreases the alignment of incentives between beneficial owners and firm management and shifts control from investors to managers.

Management tveganj pri investiranju: primer investicije v kripto valute

We focused on investing and the risks, that accompany investors, through an overview of the basics of risk management in the context of investing, and then focused on the psychology of risk in investing. We highlighted and explained the common forms of risks that are present in various investments in financial instruments. With a critical analysis of the field, we present our examples and experiences with investing. Through the framework of the theoretical review of the literature, we analyse the risks we have encountered and the ways or strategies by which we have either eliminated these risks or reduced the probability of their occurrence. We also paid attention to risks, according to our perceptions over the period, from the first investment in cryptocurrencies to investing in shares and index funds.