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This implies that absolute convergence and unconditional convergence only coincide in finite dimensional spaces. We will characterize Banach spaces $X$, where the constant $c_E \\sim \\sqrt{n}$ for all finite dimensional subspaces. 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This implies that absolute convergence and unconditional convergence only coincide in finite dimensional spaces. We will characterize Banach spaces $X$, where the constant $c_E \\sim \\sqrt{n}$ for all finite dimensional subspaces. 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