The highest paid EKG technician in the United States receives an annual salary of about $74,760 whereas the lowest paid EKG technician earns around $32,800 per year. The annual median salary for an EKG technician is about $47,010.
Meanwhile, during the current crisis, losses in currency-hedged funds like DBEM have been buffered as the dollar rallied. With over $85 billion in assets under management between EEM and VWO, I'm still surprised that the currency-hedged version of these funds, DBEM, only has $4.5 million in assets.
Variance swaps are theoretically simpler than volatility swaps; they can be hedged with a static position in European call and put options (with suitably chosen strikes), together with a dynamic position in the underlying asset. Volatility swaps, on the other hand can only be hedged with a dynamic portfolio of European options. But the fact that the instruments may be hedged implies that they may be valued in a model-independent manner.