Table 4 Framework on SLTs' implications...

Table 4

Framework on SLTs' implications for ROI

		Absolute measures related to ROI
		Revenue (R)	Cost (C)	Investment (I)
SLTs	$E_{k}$	$R = f_{E_{k}, R} (\tilde{E_{k}})$	$C = f_{E_{k}, C} (\tilde{E_{k}})$	$I = f_{E_{k}, I} (\tilde{E_{k}})$
	$I_{k}$	$R = f_{I_{k}, R} (\tilde{I_{k}})$	$C = f_{I_{k}, C} (\tilde{I_{k}})$	$I = f_{I_{k}, I} (\tilde{I_{k}})$
	$S$	$R = f_{S, R} (\tilde{S})$	$C = f_{S, C} (\tilde{S})$	$I = f_{S, I} (\tilde{S})$
	$D$	$R = f_{D, R} (\tilde{D})$	$C = f_{D, C} (\tilde{D})$	$I = f_{D, I} (\tilde{D})$
	$A_{S, i}$	$R = f_{A_{S, i}, R} (\tilde{A_{S, i}})$	$C = f_{A_{S, i}, C} (\tilde{A_{S, i}})$	$I = f_{A_{S, i}, I} (\tilde{A_{S, i}})$
	$A_{D}$	$R = f_{A_{D}, R} (\tilde{A_{D}})$	$C = f_{A_{D}, C} (\tilde{A_{D}})$	$I = f_{A_{D}, I} (\tilde{A_{D}})$

		Absolute measures related to ROI
SLTs	$E_{k}$	$R = f_{E_{k}, R} (\tilde{E_{k}})$	$C = f_{E_{k}, C} (\tilde{E_{k}})$	$I = f_{E_{k}, I} (\tilde{E_{k}})$
$I_{k}$	$R = f_{I_{k}, R} (\tilde{I_{k}})$	$C = f_{I_{k}, C} (\tilde{I_{k}})$	$I = f_{I_{k}, I} (\tilde{I_{k}})$
$S$	$R = f_{S, R} (\tilde{S})$	$C = f_{S, C} (\tilde{S})$	$I = f_{S, I} (\tilde{S})$
$D$	$R = f_{D, R} (\tilde{D})$	$C = f_{D, C} (\tilde{D})$	$I = f_{D, I} (\tilde{D})$
$A_{S, i}$	$R = f_{A_{S, i}, R} (\tilde{A_{S, i}})$	$C = f_{A_{S, i}, C} (\tilde{A_{S, i}})$	$I = f_{A_{S, i}, I} (\tilde{A_{S, i}})$
$A_{D}$	$R = f_{A_{D}, R} (\tilde{A_{D}})$	$C = f_{A_{D}, C} (\tilde{A_{D}})$	$I = f_{A_{D}, I} (\tilde{A_{D}})$