Cost of Capital Links
Size Premium
| Data Source | Description | Link |
| Ibbotson | Size Premium data 2011 | Link |
| Ibbotson | Size Premium data 2013 | Link |
| Duff&Phelps | Size Premium data 2013 | Link |
| E.Peek Research paper | Size Premium data for Europe | Link |
| K. Whilhelm Research paper | Size Premium data for Canada | Link |
Credit Rating Characteristics
| Data Source | Description | Link |
| Moody's | 2012 Credit Rating Ratios report | Link |
Risk Free Rate
| Data Source | Description | Link |
| Investing.com | Government bond yield for various countries | Link |
| Damodaran | Country risk premiums | Link |
| Investlog | Country risk premiums visualization, including historic figures | Link |
Tax Rate
| Data Source | Description | Link |
| KMPG | Average tax rates for various countries | Link |
| Damodaran | Average tax rates for various countries | Link |
| Trading Economics | Average tax rates for various countries | Link |
Beta Calculation
| Data Source | Description | Link |
| Damodaran | Levered and Unlevered Beta by industry | Link |
| Yahoo! Finance | List of companies by industry | Link |
| Nasdaq | List of companies by industry (not only Nasdaq listed) | Link |
| Google Finance | List of companies by industry | Link |
Equity Market Premium
| Data Source | Description | Link |
| Damodaran | Historical implied market risk premiums | Link |
| Damodaran | Country default spreads and risk premiums | Link |
| Market Risk Premia | Market risk premiums for various countries | Link |
| IESE Research | Market risk premiums in 71 countries survey | Link |
Debt Margin
| Data Source | Description | Link |
| Damodaran | Default spreads for various credit ratings | Link |
| FRED | Corporate spreads for various credit ratings | Link |
Following are updated corporate debt margins for various maturities (July 14, 2017), updated weekly:
| Maturity | 2 | 5 | 10 | 20 |
| Corporate Spread | 0.583 | 0.888 | 1.560 | 1.690 |
