How to Use "copula" with Example Sentences

1. Default correlation of automobile companies --- a copula method .
2. An investigation of the hedging strategies and copula function .
3. The copula ' is ' springs from the nature of the notion , to be self identical even in parting with its own .
4. Pricing and risk measuring of financial multi-asset based on the copula theory .
5. Integrated risk measurement of portfolio with extreme copula .