... 机会集合(Opportunity Set) 预算约束与时间约束(Budget Constraint and Time Constraint) 偏好(Preference) ...
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In an environment of severe budget constraint and at a time when policymakers are considering both budget and tax reform, is it time to rethink the role of charities and other non-profits?
FORBES: Why Should The NFL And PACs Get The Same Tax Advantages As Soup Kitchens?
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