21. The company's chairman, Michael D . Eisner, has told shareholders that he will keep a tight rein on  spending. 22. To keep a tight rein on  tickets, organizers printed the names of the national committees on each allotted ticket. 23. To bring inflation down, Banco de Mexico has pledged to keep a tight rein on  the country's money supply. 24. Lukashenko keeps a tight rein on  the media in his country and has shut down independent newspapers and radio. 25. In recent years, Kol Ha'Ir said, Mrs . Netanyahu has tried to keep a tight rein on  her husband. 26. The board's executive committee would be replaced with a new management group ordered to keep a tight rein on  planning. 27. But D'Amato, a disciplined politician, normally keeps a tight rein on  his public utterances in the middle of a campaign. 28. Through its powerful Central Selling Organization, De Beers keeps a tight rein on  the world diamonds supply to stabilize prices. 29. Thailand's media have long been among the freest in Asia, while Singapore keeps a tight rein on  its domestic press. 30. Maskhadov has been trying to keep a tight rein on  warlords and armed gangs, but with little success so far.