There is a similar story described by Robert Cialdini in his classic book, <i>Influence: The Psychology of Persuasion</i> [1]:<p>"In 1985 Ethiopia could justly lay claim to the greatest suffering and privation in the world. Its economy was in ruin. Its food supply had been ravaged by years of drought and internal war. Its inhabitants were dying by the thousands from disease and starvation. Under these circumstances, I would not have been surprised to learn of a five-thousand-dollar relief donation from Mexico to that wrenchingly needy country. I remember my chin hitting my chest, though, when a brief newspaper item I was reading insisted that the aid had gone in the opposite direction. Native officials of the Ethiopian Red Cross had decided to send the money to help the victims of that year’s earthquakes in Mexico City...Despite the enormous needs prevailing in Ethiopia, the money was being sent because Mexico had sent aid to Ethiopia in 1935, when it was invaded by Italy."<p>[1] <a href="https://www.goodreads.com/book/show/28815.Influence" rel="nofollow">https://www.goodreads.com/book/show/28815.Influence</a>