shiny-retirement-calc

Shiny app for performing retirement planning via Monte Carlo simulation, FIRE, etc.

Deployed on ShinyApps.io

Development

• Install packages with install.packages()
• Run the Shiny app via RStudio desktop

CI/CD

• Automated deployment via Github Actions
• SHINYAPPS_NAME, SHINYAPPS_SECRET, and SHINYAPPS_TOKEN are repository secrets in Github where the values include single quotes around them. The name is the Github account username.

Data

• Social Security Death Probabilities Projections

Open Questions

• Are stock returns, bond returns, and inflation normally distributed?
• How do correlations between asset classes impact results? Are there correlations between inflation, interest rates, and market returns?

TODOs (add variables or account for)

• Nursing home costs
• Medical care / insurance
• Long term care insurance
• Taxes (current and in retirement), pre-tax and post-tax
• 401k/403b and employee matching
• Traditional and Roth IRAs
• Social security, pensions, etc.
• Asset reallocation over time to mimic target retirement funds, more bonds over stocks, etc.
• Inheritance

Online Calculators

• Vanguard retirement nest egg calculator
• Vanguard retirement income calculator
• Engaging Data FIRE calculator
• Engaging Data 4% rule calculator
• Engaging Data marginal tax rates calculator
• Engaging Data tax brackets calculator
• Engaging Data post-retirement calculator

Resources and Readings

• Criticisms of Monte Carlo
• Monte Carlo in Python