what are the similarities between IPECC model and Meredith and mantel- three-stage model? what are the similarities between IPECC model and Maylor- four-stage model? what are the similarities beween...

what are the similarities between IPECC model and Meredith and mantel- three-stage model?

what are the similarities between IPECC model and Maylor- four-stage model?

what are the similarities beween IPECC model and Frigenti and cominos- five-stage model?