Malus sieversii Malus sieversii Malus sieversii is a wild apple native to the mountains of Central Asia in southern Kazakhstan. It has recently been shown to be the primary ancestor of most cultivars of the domesticated apple ("Malus pumila"). It was first described (as Pyrus sieversii) in 1833 by Carl Friedrich von Ledebour, a German naturalist who saw them growing in the Altai Mountains. It is a deciduous tree growing to , very similar in appearance to the domestic apple. Its fruit is the largest of any species of "Malus" except "pumila", up to 7 cm diameter, equal in size to many
Bonus-malus in early years) but with long-term losses (which, under a traditional bonus system, would not be penalized). Such a system was proposed by Raghuram Rajan in January 2008. Author Jim Collins proposed that executives be expected to buy stock with their own money (as was done at IBM in the 1990s) taking on both up-side rewards and down-side risk. In November 2008, UBS AG announced a change to its executive compensation scheme implementing such a system, which it dubbed a "bonus-malus" system. In France, the prices of insurance are calculated as function of the car type, subscribed insurance options, and