Before revision:  In spite of its simplicity, it describes well the power growthof share-prices ,  periodicity, logarithmic periodicity, and the market phenomena like using price targets and profit-taking;
After revision:  In spite of its simplicity, it describes well the power growthof share-prices , which describes well their power growth, periodicity, logarithmic periodicity, and the market phenomena like using price targets and profit-taking;