| Information systems | Statistics |
| Adoption Models (technological-organizational-environmental (TOE), technological acceptance model (TAM), and human-organizational-technological-environmental (HOTE)) |
Sample selection models |
| Internet, web site, e-commerce, e-procurement, B2B e-commerce, B2C e-commerce, and e-business adoption and diffusion |
Factorial analysis (FA) and confirmatory factorial analysis (CFA) |
| Information technologies adoption and diffusion in health |
Cluster Analysis (CA) |
| Internet business solutions adoption and diffusion |
Generalized linear models (logistic, probit, Poisson, and gamma regression) |
| Internet privacy |
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| Digital divide |
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