Table 2.

Notation and explanation.

Notations	Descriptions
$a$	Potential demand scale
$p$	Market price per unit of logistics service
$w_j$	$j=\mathrm{1,2}$, Under the enabling strategy, the logistics service purchase price in integrator phase $j$, which is decided by the provider
$\alpha$	Profit distribution ratio of suppliers under a merger strategy
$v_j$	$j=\mathrm{1,2}$, The service quality of the logistics service supply chain in period $j$
${\beta }_j^e$	$j=\mathrm{1,2}$, Under the enabling strategy, the altruistic level of the integrator in period $j$, which is determined by the integrator.
${\beta }_j^m$	$j=\mathrm{1,2}$, Under the merge strategy, the altruistic level of the integrator in period $j$ is determined by the integrator
$k$	The unit cost of altruistic behavior for improving service quality
$\lambda$	The change coefficient of demand after demand updating in the second period
$\eta$	Probability of demand increasing in the second period
${\epsilon }_{\uparrow }/{\epsilon }_{\downarrow }$	The uncertainty of demand increasing, ${\epsilon }_{\uparrow }\sim \left(\mu ,{\delta }_{\uparrow }^2\right)$ The uncertainty of demand decreasing, ${\epsilon }_{\downarrow }\sim \left(\mu ,{\delta }_{\downarrow }^2\right)$
${\pi }_{pj}^e\left({\pi }_{pj}^m\right)$	$j=\mathrm{1,2}$, under enabling strategy(merge strategy), the profit of provider in period $j$
${\pi }_{ij}^e\left({\pi }_{ij}^m\right)$	$j=\mathrm{1,2}$, under enabling strategy(merge strategy), the profit of integrator in period $j$