Buybacks take the form of Vessel Buyback Programs and License Retirement Programs. The Fund typically pushes for large buybacks and dividends to shareholders. Moreover, all share buybacks enhance the value of promised shares in their share incentive schemes. Senators Charles Schumer and Bernie Sanders advocated limiting stock buybacks in January 2019. He advocates changing these incentives to limit buybacks. Since 2018 corporations have invested heavily in buybacks, including over $1 trillion from 2018-2019. In recent years, Loews has also allocated significant capital for share buybacks. The stock exchange's rules apply to "on-market buybacks". Company executive compensation is often affected by share buybacks. During 2018 alone, a record $1 trillion was spent on buybacks. The brothers also established a policy of not allowing bid-ins or buybacks by the sellers. Legal restrictions on buybacks were greatly eased in the early 1980s. Philadelphia tried gun buybacks in 1968, 1972 and 1974, retrieving 544 guns. Restrictions on buybacks were greatly eased in the early 1980s. Consider the 2019 Flair Marvel Buybacks / Sketch Cards.