I am not in a position either to judge the quantitative impact of shale energy on the US economy and, via growth there, on the rest of the world, or to comment on its geopolitical consequences or net effect on carbon emissions. But it does seem to me that contemporary apostles of secular stagnation like Summers and Paul Krugman at least ought to be taking the shale-energy revolution into account.
我既不想对页岩能源对美国经济的影响（以及通过美国的增长对全世界造成的影响）下定量判断，也无意评论其地缘政治影响或对碳排放的净效应。但在我看来，萨默斯和克鲁格曼（Paul Krugman）等长期停滞说的当代信徒至少应该考虑一下页岩革命。