Livio Di Matteo in What's in a Name?:
We all know that the word “economics” comes from the Greek “okionomia” which refers to the thrifty management of household affairs. By extension, the origin of the term “economy” is closely related to the same term as it is from the Latin “oeconomia”, which is again from the same Greek “okionomia”. From all this, it is not difficult to see an economy as simply the agglomeration of individual households when it comes to the European language tradition. In a sense this nicely encompasses both our micro and macro traditions, as macroeconomics simply becomes the study of the sum of many individual household behaviours.
No no no no no no no: "macroeconomics simply becomes the study of the sum of many individual household behaviours." No.
That's what people think? No wonder the economy is such a mess.