Marshallian price theory

例句：

1. 1. Maslow's hierarchy of needs suggests that people have differentlevels of needs that must be satisfied beforethey can achieve a higher level of satisfaction.
   马斯洛的需求层次理论表明，人们在满足基本需求之前无法实现更高层次的满足。
2. 2. Herzberg'stwo-factor theory states that motivation isdriven by two factors: hygiene and motivation.
   赫兹伯格双因素理论认为，动机由两个因素驱动：卫生和激励。
3. 3. The Maslow's hierarchy of needs theory has been widelyapplied in psychology to understand human behavior.
   马斯洛的需求层次理论在心理学中被广泛应用，以理解人类行为。