Dear all,Since that point, total output — the amount of goods and services produced by the United States — has increased, as have many other measures of economic activity.
But some economists say that a better measure would be the gap between where output is and where it could have been if growth had been uninterrupted.
The above is taken from the NYT from the same article, and I've looked measure up in dictionaries. But I still don't know clearly what measure(s) mean in the sentences in question. Could you help me? Thanks.