正文 第30章 给局长们上课(第2页/共3页)
之吧！”
王亮扫视全场，看大家都低头沉默不语，不由得摇了摇头。最后他想起事情的原作俑者，便把目光转向林辰，试探着问：“你有没有什么办法？”
此时林辰已胸有成竹，他站起来说：“我想可以从关键生产要素入手，对各矿山建模进行评估，以此确定各矿产量，根据确定后的产量征收税款。”
“建模？”大家面面相觑。
王县长终于笑了，他看着各位发楞的局长，用调侃语气地说：“忘记各位的学历和专业了！建模，就是建立模型，是根据实际问题来建立数学模型，对数学模型来进行求解，然后根据结果去解决实际问题。”
几位局长的脸红了，他们大多数是文科出身，在领导身边写材料或是搞服务，表现好了才提拔到局长岗位。这也是当下的实际情况，公务员当中，理科出身而且学得好的并不多。
王亮用期待的眼神看着林辰，说：“你在白板上给我们讲解一下。”
林辰走向白板，他边写边说：“前段时间徐镇长送给我一本《数学建模模型分析》，我学了以后，收获很大。我想可以建立这几类模型：电费成本模型、工资成本模型、原料成本模型、以产控销模型、以进控销模型。”
“其中最简单可行的，应该是电费成本模型、原料成本模型和矿产资源补偿费模型。”
王亮鼓励地说：“你把最简单的几个模型给局长们讲一下，要通俗易懂。”
林辰点了点头。“我先说一下电费成本模型。因为客观条件决定，滑石矿每生产一吨矿石，它用的电是基本稳定的。以这个电量数值作为评估依据，根据全生产过程中所用电量，就可以计算出滑石的产量，从而可以计算出销售额和应纳税额。”
“在具体运用中，我们可以拿一个月作为评价期，评价的公式是：??评价期滑石产量=评价期所用电费金额÷生产每吨滑石所用电费金额；评价期滑石销量=评价期滑石产量+评价期初滑石库存-评价期末滑石库存；评价期滑石销售收入=评价期滑石销量×评价期滑石销售单价。”
“第二个原料成本模型。滑石矿企业投入生产所用的坑木，和它生产滑石掘进的巷道成正比，掘进的巷道和滑石产量成正比。”
“测算公式为：单月滑石产量=本月所用坑木根数÷吨滑石所用的坑木根数；本月滑石销量=滑石月初库存+滑石产量-滑石月末库存；滑石销售收入=滑石销量×当月销售单价。”
??“第三个矿产资源补偿费模型。每个滑石矿的地下滑石储存量、滑石层结构都有一个技术测绘平面图，以此为基础，每月到滑石矿测绘开采平面图和掘进图，可以计算出当月开采量，比对一下库存平面图数据，就可以得
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