ABSTRACT Online shopping has become increasingly popular among customers due to the availability and easy accessibility of electronic devices. Hence, a manufacturer would like to open an online platform with his traditional retail channel. Government subsidies are endogenised in a research joint venture based on recent observations. Here, government subsidies are assumed to increase the production of eco-friendly products to be much more environmental friendly. The retailer and third-party collector collect used products from the customer and return them to the manufacturer for recycling. Demand rates are modelled as linear functions of selling prices and the level of green innovation. The collection rates are considered linear functions of collecting fees and the level of green innovation. The study investigates three decentralised models under three scenarios and the centralised model. A sensitivity analysis is composed to study the effects of the essential parameters. Critical managerial insights have been provided, which is beneficial for the supply chain members. If the cost co-efficient of green innovation can be reduced, then the optimal level of green innovation and the members' profits increase. Again the governmental subsidy is directly proportional to the level of green innovation and the manufacturer's profit.