 Emmanuel Saez, a colleague of Piketty and one of the economists cited by Giles to discredit him, stated that "Piketty's choice and judgement were quite good" and that his own research supports Piketty's thesis.Piketty released a full point-by-point rebuttal on his website.A 2017 study in "Social Science History" by University of California Riverside economic historian Richard Sutch concluded "that Piketty's data for the wealth share of the top 10 percent for the period 1870 to 1970 are unreliable ... Piketty's data for the top 1 percent of the distribution for the nineteenth century (1810–1910) are also unreliable ...