I've spent the morning reading about the Trans-Pacific Partnership. I went in prepared to deliver a column full of details, winners and losers, strong opinions about the good provisions and the bad. But what really comes to mind is a dismal thought: "Is this the best we can do?"

Oh, yes, I know the statistics. Forty percent of the world's economy. Thousands of tariffs falling. I know the opposition points too, about giveaways to business, intellectual property rules, outsourcing jobs. No one is talking about the larger story, though, which is that the biggest trade news in a decade involves a regional deal of relatively limited impact.

It was not always thus. When I was a fledgling journalist, a wee slip of a thing, we economics writers looked to major global trade negotiations to advance the cause of freer markets, and not incidentally, the material progress of mankind. We looked down on regional side-deals because they were such weak tea compared with the robust brew of a global agreement. Regional deals distorted the flow of trade, encouraging people not to exploit comparative advantage and production capabilities, but rather to seek the best combination of tariff rules from among competing regional frameworks. I have heard arguments that such deals, by distorting trade and weakening the pressure to make global deals, were actually worse than doing nothing. Indeed, I may have made such arguments.