# Finance

## Libra is the Future of Money

The post about what Libra is; most of all, what it not.

## The sad reality of ESG and Hashtag Activism

Most people are very conscious shoppers. Some people are attracted to the brands; others may be attracted to the bargains. Then others are motivated by the social aspects of a firm and how certain businesses strive to make a positive impact on our society. To a certain extent, we all like Corporate Brands to make positive contributions towards environmental, social, and corporate governance (ESG). For the brands that fall short of their “Corporate Responsibility,” there’s always #CancelCulture.

## Option Sensitivities, Formula Proofs, and Python Scripts: Part 1 (Delta)

The following is an general overview of vanilla options partial sensitivities (option greeks). This series will be a continuation of the project Option Payoffs, Black-Scholes, and the Greeks. We've already outlined the necessary terms for understanding Options and the Greeks here. In this post, I will be covering the first greek: Detla ($\Delta$). The delta of an option, $\Delta$, is defined as the rate of change of the option price respected to the rate of change of the underlying asset price: