一、题材:具有政治意义、文化品位、历史价值等热门题材,升值的可能性相对较大。像以端午节、中秋节为题材而发行的纪念币及邮票等。二、发行量:发行量直接关系价格。一般说,发行量越少、越能升值,这就是“物以稀为贵”的道理。反之,如发行量过大,极易贬值。三、需求:藏家的需求状况对价值影响很大。如果供不应求,势必升值;反之,如供过于求,则升值希望渺 First, the theme: political significance, cultural taste, historical value and other popular topics, the possibility of appreciation is relatively large. Like the Dragon Boat Festival, Mid-Autumn Festival as the theme of issuing coins and stamps. Second, the circulation: circulation directly related to price. In general, the less circulation, the more appreciation, this is the “exorbitant thing” truth. On the contrary, such as circulation is too large, easily devalued. Third, the demand: the demand of collectors have a great impact on the value. If demand exceeds supply, it is bound to appreciate; on the contrary, if oversupply, the appreciation of hope is dim