Minimalism might be an apt description for sponsorship spending on the arts.Corporate spending on art museums, performing arts venues and other properties is expected to grow just 3.3 percent in 2017—lagging the projected 4.1 percent increase in overall sponsorship spending as well as sports (4.3 percent), entertainment (3.9 percent) and causes (3.6 percent).North American sponsorship spending is expected to total $994 million, up from $962 million in 2016.As in years past, spending on the...