This study constructs a minimum variance portfolio of Brazilian sovereign bonds using Modern Portfolio Theory (MPT). The analysis incorporates coupon payments into total returns, calculates daily log returns, and optimizes the portfolio under practical investment constraints. The performance of the optimized bond portfolio is compared against the FIXA11 ETF benchmark, highlighting improvements in risk-adjusted returns, Sharpe ratio, and volatility reduction due to coupon reinvestment.

This project analyzes NOAA storm data from 1950 to 2011 to identify which weather events cause the most harm to public health and the economy. Using R, the data is processed and summarized with tables and plots to inform disaster preparedness efforts.