In my last semester of Economics I invested and tracked the stock market. I learned that investing in certain companies can be risky and that proper research on companies is detrimental before purchasing stocks. Three stocks that have influenced the majority of my financial gains and losses include Twitter, Amazon, and Pepsi. I would like to introduce you to Twitter Inc., a modern and popular form of self-expression on the Internet. It provides users with a wide range of services including Twitter, an application that allows the user to share and distribute content to their followers. The company also owns Vine, a mobile application where users can create and share short looping videos, and #Music, another mobile application that helps users find new music and artists based on tweets. Twitter Inc. also provides a set of tools, public APIs, and embeddable widgets that developers can use to contribute their content to its platform. Twitter was founded in San Francisco in 2006. Today Twitter has 255 monthly active users and 500 million tweets sent per day (Twitter Inc.). Unfortunately Twitter Inc. failed to progress during the time I invested in their company. In December 2013 Twitter Inc.'s net income was -511,471,000, this number has decreased by more than half its value to -132,362,000 as of March 31, 2014 (Yahoo Finance). Both of these net incomes over a quarter are negative numbers indicating financial losses. The recent drop in stock prices appears to be the cause of the decline in Twitter timeline views for a monthly active user. People now discuss the relevance factor for Twitter, as most users don't know what to do when they are on Twitter. As a result, some open an account and subsequently do not use the site. In recent times…middle of the paper…quantities supplied, shifting the market equilibrium towards a higher equilibrium quantity and a lower equilibrium price. I think this has resulted in increased revenue for PepsiCo, which is why its stock has risen this year. I really wish I hadn't sold them so soon. Although most of my stocks were not doing very well, I learned from my research that stock prices have risen steadily over the course of this half year. This may lead one to believe that consumer confidence has increased and that the US economy is continuing its recovery from the 2008 financial crisis. More and more consumers appear to trust the private sector, investing their money in companies that bring various goods and services to the world. national economy. From this I conclude that the American economy is growing and I hope it continues to grow for a long period of time.