It is possible for a company’s cost of debt to be greater than their cost of equity in certain situations and/or countries which will push WACC above cost of equity.
Let’s say in Country X, the capital structure favors equity. Boom, the costs are switched.
Let’s say you have a startup company who is thinking about going public. Depending on the economic environment, it might be cheaper to just do an IPO than to approach a bank for a loan.
These are just off the top of my head but it is possible. Not probable, but possible.
So the answer to the OP’s question should be: “Depending on the economic climate, the laws of the country in question, the development level of the firm, and a host of other factors, the answer I would give is” In the United States the cost of equity is less than WACC because the cost of debt with the tax shield brings down WACC; however, it is possible for the cost of debt to be too high and/or for the tax shield to be removed from legislation which will cause WACC to be higher than cost of equity.”