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Table 1 Related parameters and their explanation

From: Evolutionary game model of health care and social care collaborative services for the elderly population in China

Symbol Explanation
\({U}_{1}\) The additional benefit of elderly social care organizations from the provision of health care services in the bilateral cooperation type
\({U}_{2}\) The additional benefit of elderly social care organizations in the elderly social care organization-led type
\({P}_{1}\) The costs that elderly social care organizations pay to purchase health care services or pay for negotiation in the bilateral cooperation type
\({P}_{2}\) The cost for elderly social care organizations providing extra health care services in the elderly social care organization-led type
\({R}_{1}\) The additional income of health care organizations from the provision of elderly social care services in the bilateral cooperation type
\({R}_{2}\) The additional income of health care organizations from the extra provision of elderly social care services in the health care organization-led type
\({C}_{1}\) The additional operating costs of health care organizations in the bilateral cooperation type
\({C}_{2}\) The extra costs of health care organizations from the extra provision of elderly care services in the health care organization-led type
\({S}_{1}\) The government subsidy to elderly social care organizations in the bilateral cooperation type
\({S}_{2}\) The government subsidy to elderly social care organizations in the elderly social care organization-led type
\({S}_{1}^{^{\prime}}\) The government subsidy to health care organizations in the health care organization-led type