"The economy" is just a wildcard character for whichever of 6000 different metrics a low information voter wants to use to justify voting R.
Gas prices, inflation, wage growth, GDP, corporate profits, the Dow Jones..... one of them is sure to be better when the R was president and another one is sure to be worse when a D is president.
I had no idea what a "Dutch angle" was, so I googled it and was pretty tickled to find that it triggered a Google easter egg :)
Maybe I am one of today's 10,000 but I had never heard of that particular one!