技术知识：社会对生产物品与劳务的最好方法的了解。
Technological knowledge is society's understanding of Thebes ways to produce goods and services.
这里没有货币；货物与劳务直接交换其他的货物与劳务。
There is no money; goods and services are directly bartered against other goods and services.
几年后出现了通货紧缩现象，那个时期商品与劳务的成本实际上下降了。
Several years have also witnessed deflation, when the cost of goods and services actually dropped.
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