Congestion externalities — higher costs resulting from an attempt to use resources at a higher-than-optimal capacity.

外部阻隔——在尝试更高而不佳的容量下的资源使用而导致的更高的成本。

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Then at 4pm they turn to the government's attempt to cut its costs.

BBC: Week ahead in Parliament

At worse, it is simply another attempt to artificially manipulate the winners the losers in the energy industry by raising costs on one form of energy products while subsidizing another.

FORBES: Is the White House Proposing A Massive Carbon Tax?