Assumptions of the classical Linear Model (Clm) e So far, we know that given the Gauss Markov assumptions, OLS IS BLUE e In order to do classical hypothesis testing we need to add another assumption(beyond the Gauss-Markov assumptions) Assume that u is independent of x,x2…,xk and u is normally distributed with zero mean and variance 0: u- Normal(0, 02) Economics 20- Prof anderson

(一)个人阻力 1 经济因素、安全、未知的恐惧 (二)群体阻力 1 群体的惯性 2 对权力关系的威胁 3 对专业知识的威胁 4 对资源分配的威胁

Functional form e We' ve seen that a linear regression can really fit nonlinear relationships 2 Can use logs on RHS, LHS or both Can use quadratic forms ofx's Can use interactions ofx's e How do we know if we've gotten the right functional form for our model? Economics 20- Prof anderson

(1)熟悉现金流量的概念; (2)熟悉工程项目投资概念及构成; (3)熟悉成本费用的概念及构成; (4)掌握工程项目的收入和销售税金及附加的计算;

(1)熟悉现金流量的概念: (2)熟悉工程项目投资概念及构成: (3)熟悉成本费用的概念及构成 (4)掌握工程项目的收入和销售税金及附加的计算

一、什么是决策 1、决策及决策系统 2、决策的特点 3、决策与预测 4、决策与管理 5、决策科学 三、决策的基本原则 四、决策的种类 五、决策的程序 六、决策的发展趋势

Simultaneity Simultaneity is a specific type of endogeneity problem in which the explanatory variable is jointly determined with the dependent variable 2 As with other types of endogeneity, IV estimation can solve the problem o Some special issues to consider with simultaneous equations modelS(SEM) Economics 20- Prof anderson

• 可持续发展 – 定义与背景 – 内涵与原则 • 可持续发展能力建设 – 能力建设与保障体系 • 城市与城市可持续发展 – 城市的特点 – 城市可持续发展的定义 • 城市环境和可持续发展指标 –案例 –城市指标的发展现状评析 –经济指标的考核—GDP？？ • 城市生态可持续发展 –特点与基本原则 –实现途径

then there exists AE R\ such that (Kuhn-Tucker condition) G(s') =0 and 1. Lagrange Method for Constrained Optimization FOC: D.L(,\)=0. The following classical theorem is from Takayama(1993, p.114). Theorem A-4 (Sufficieney). Let f and, i= ,..m, be quasi-concave, where Theorem A-1. (Lagrange). For f: and G\\, consider the following G=(.8 ) Let r' satisfy the Kuhn-Tucker condition and the FOC for (A.2). Then, x' problem is a global maximum point if max f() (1)Df(x') =0, and f is locally twice continuously differentiable,or

假设ABC公司2004年发生以下经济业务: 1.元月1日,该公司所有者丁一和丁二各向公司投入资本1500000元 2.元月2日,预付半年房租共计12000元 3.元月3日,公司购入汽车一部,15万元款项已经支付。该汽车预计使用年限为8年