CS_i = \frac{1}{2} \times \frac{Q_i^{2}}{s_i} \quad where \\[br][br]i \in \{H, B\} \\[br][br]using the demand functions Q_H = 1 - s_H \times P_H, \quad Q_B = 1 - s_B \times P_B \quad where \\[br][br]s_H = 1 \quad and \quad s_B = \frac{1}{2}
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