If the agent can take risks specific to the contract, it is sufficient to conclude that the agent is an independent distributor. On the contrary, if the agent does not take risks specific to the contract, the analysis must be continued by assessing the risks associated with market-specific investments. If the agent does not take risks and contractual risks related to market-specific investments, it may be necessary to take into account the risks related to other necessary activities in the same product market. . . .