Yes, it’s a matter of productive efforts and resources actually being productive. Your friend sees the new houses and such and thinks it’s all useful stuff. But if it’s so desired, and so useful, why is no one using it?? I covered this from the jobs angle here, but Hazlitt actually has a relevant section in chapter 4 of Economics in One Lesson…
A bridge is built. If it is built to meet an insistent public demand, if it solves a traffic problem or a transportation problem otherwise insoluble, if, in short, it is even more necessary than the things for which the taxpayers would have spent their money if it had not been taxed away from them, there can be no objection. But a bridge built primarily “to provide employment” is a different kind of bridge. When providing employment becomes the end, need becomes a subordinate consideration. “Projects” have to he invented. Instead of thinking only where bridges must be built, the government spenders begin to ask themselves where bridges can be built. Can they think of plausible reasons why an additional bridge should connect Easton and Weston? It soon becomes absolutely essential. Those who doubt the necessity are dismissed as obstructionists and reactionaries.
Two arguments are put forward for the bridge, one of which is mainly heard before it is built, the other of which is mainly heard after it has been completed. The first argument is that it will provide employment. It will provide, say, 500 jobs for a year. The implication is that these are jobs that would not otherwise have come into existence. This is what is immediately seen. But if we have trained ourselves to look beyond immediate to secondary consequences, and beyond those who are directly benefited by a government project to others who are indirectly affected, a different picture presents itself. […]
But then we come to the second argument. The bridge exists. It is, let us suppose, a beautiful and not an ugly bridge. It has come into being through the magic of government spending. Where would it have been if the obstructionists and the reactionaries had had their way? There would have been no bridge. The country would have been just that much poorer.
Here again the government spenders have the better of the argument with all those who cannot see beyond the immediate range of their physical eyes. They can see the bridge. But if they have taught themselves to look for indirect as well as direct consequences they can once more see in the eye of imagination the possibilities that have never been allowed to come into existence. They can see the unbuilt homes, the unmade cars and radios, the unmade dresses and coats, perhaps the unsold and ungrown foodstuffs. To see these uncreated things requires a kind of imagination that not many people have. We can think of these non-existent objects once, perhaps, but we cannot keep them before our minds as we can the bridge that we pass every working day. What has happened is merely that one thing has been created instead of others.
Just for the record this has been documented many times on the Mises Blog at least as far back as 2009. These may offer more insight as well…
Is China’s Economic Growth Real?
The World’s Largest Mall is a Ghosttown
The Inevitable Result of Central Planning: China’s Ghost Cities and Malls