理论经济学

university life can't get away amativeness, an economic analysis from cost and income,though economic basic theory to talk out a successful amativeness.

恋爱是大学生活中青涩又甜蜜的话题，而本文则是从成本和收益方面来对这个话题进行经济学分析，通过经济学基本理论，来分析大学生的恋爱。

ABSTRACT: From the views of urban economics, urban sociology, political economics, anthropogeography, and urban planning and urban design, this paper attempts to generalize the research literature on "urban spatial expansion", and to find a theoretic relationship between urban expansion and its influential factors.

针对"城市空间扩展"的研究，本文尝试从城市经济学、城市社会学、政治经济学、人文地理学和规划设计学等几个视角分别概括和归纳国内外城市研究者的相关成果，为在连续的时空背景下全面综合地认识城市发展条件和影响因素提供必要的理论联系。

In classical economics and new classical economics, an enterprise is one of components of market and has apriority as an organization, so they do not discuss its economic character but focus on its actions of business management, like its production function and its extension, and the cost theory is suited to them.

在西方古典经济学与新古典经济学里，企业是市场的构成要素，作为一种组织具有先验性，因此，它们并不考虑组织本身的经济意义，而集中探讨企业的生产经营活动，即生产函数及其拓展，其成本理论也是与生产函数相匹配的成本函数的研究。

But it carried on the tradition of modern philosophy and science, adopting the analytics of atomism with static, rigid and imple characteristic as well as limitation.

经济学经过二百多车的发展，形成了系统的理论体系，并在指导经济实践中取得了巨大的成就，但经济学继承近代哲学和科学的传统，沿袭了原子还原主义的分析方法，具有静态的、机械的和简单的特征，又存在着局限性。

However, there is an essential difference between Marxist political economics and the capital theory in the classical economics.

马克思主义政治经济学是在批判地继承其前人尤其是古典政治经济学的基础上建立起来的，其资本一般理论更是如此。

This paper introduces the Harmony Theory simply;and reinterprets Harmony theory by management,economics,sociology angles of view; specifies the value of Harmony theory; classifies the criterion of Harmony. In this paper,the authors adjust the viewpoint about Harmony system build basing on the subject characters of human,and bound the basic issues of Harmony Theory.

本文对和谐管理理论进行简单的介绍，并从管理学、经济学、社会学的角度对和谐理论进行重新诠释，阐述了和谐理论的思想价值，对和谐标准进行了分类，并针对人的主体特性对促协力场的机制进行了调整，明确界定了和谐理论的一些基础性问题。

Based on property rights theory, transaction cost theory and social system theory, the paper puts forth a humanity hypothesis that principals are "limited, rational, realistic persons", which is the basic logical starting point of the research. The paper relocates the managerial roles of principals of the private education bloc under special circumstances, and raises three bases of the managerial role and the task of the three roles as school managers.

本文以新制度经济学中产权理论和交易费用理论以及社会系统理论为理论基础，提出了校长作为&有限理性现实人&的人性假设，以此作为本研究的逻辑起点，在民办教育集团这一特殊的情境中对校长的经营角色进行重新定位，提出了校长经营学校的三个角色依据和其作为学校经营者的三种角色任务。

The fifth part sublimes the theories to the contemporary society. For example, using them to widen the critical view of the capitalism and set up the harmonious socialism ecosystem views; Replacing "the Economic Person" with "the Ecosystem Person", and which can help to set up a new ecological theories; Using laws to standardize the application of science and technology, to develop what is useful and discard what is not; Using the scientific developing view, which is the new modern fruit of Marx's theories about the relation between human and nature , to promote the development of the economy and achieve fully harmony of the human and the nature.

第五部分与时俱进，概括了马克思&人与自然&理论在当代的升华，如用马克思&人与自然&理论去拓宽资本主义制度的批判视域，构建和谐的社会主义生态观；用&生态人&取代&经济人&的人性假设，构建新的生态经济学理论；用法制去规范科技的运用，以扬其善去其恶；用马克思&人与自然&理论现代化的新成果——科学发展观去指导经济的发展，以达到人与自然的充分和谐。

The theory of property right, thetheory of state and the theory of ideology are the mainstays.

新制度经济学主要是研究制度、制度变迁和制度创新的经济理论学派，产权理论、国家理论和意识形态理论是其主要支柱。

Firstly, the paper reviews the related theories and studies—especially agency theories, modern manpower capital theories and wage theory of classical economics.

本文首先介绍了与研究相关的理论基础，着重介绍了委托代理理论、现代人力资本理论以及古典经济学的工资理论。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。