The concentration game: Canada has an oligopoly problem--and we need to fix it

Recommendations:

The Canadian wireless telecom can enter into the market to compete with other wireless providers. This will increase the supply of network services and reduce their demand. As a result, the network providers will reduce their prices to match those of the Canadian wireless provider.

Secondly, postal banking can be introduced. As a result, the banking market will self-regulate itself. The postal banking companies will create public good by pursuing their interests.

In addition, workers can form unions to be involved in policy formulation and decision-making. This will reduce the capitalist impact on economic growth, productivity, and labor.

How can we develop those arguments from the Managerial economics perspective?