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

Dummy variables a dummy variable is a variable that takes on the value l or o Examples: male(= 1 if are male, O otherwise), south(=l if in the south, 0 otherwise), etc dummy variables are also called binar variables. for obvious reasons Economics 20- Prof anderson

Consistency e Under the Gauss-Markov assumptionS OLS IS BLUE, but in other cases it wont always be possible to find unbiased estimators o In those cases, we may settle for estimators that are consistent, meaning as n→>∞,the distribution of the estimator collapses to the parameter value Economics 20- Prof anderson

Parallels with Simple regression Bo is still the intercept B, to Bk all called slope parameters u is still the error term(or disturbance) Still need to make a zero conditional mean assumption, so now assume that E(lx,x2…,x)=0 Still minimizing the sum of squared residuals. so have k+l first order conditions Economics 20- Prof anderson

通过系统的学习与严格的训练,全面掌握数学分析的基本理论知识、思想与方法;培养严格的逻辑思 维能力与推理论证能力:具备熟练的运算能力与技巧:提高建立数学模型,并应用微积分这一工具解决实 际应用问题的能力。通过学习与研究,激发学生热爱专业,增强建设祖国的事业心和责任感,为学习数学 专业的所有后续课程打下基础

The Multiplier Process as Market Exchange Process A Contribution to the micro Foundation of Keynesian macroeconomics Abstract Traditional equilibrium analysis has been incorrectly founded once an\ordering issue\is

Introduction The objective of this chapter is to study how employment is determined in the labor market We are considering the labor market in which the following relation should always hold:

Introduction The objective of this chapter is to put the previously discussed two models --the models of product market and money market --together and discuss how output and interest rate is determined The model presented in this chapter is often called the IS-LM model (IS: the product market model; LM the money market model)

I Systems Microbiology(13 Lectures 7hece∥ as a we∥}- stirred boc/ nem/ca/ reactor Introduction 2 Chemical kinetics, Equilibrium binding, cooperativity L3 Lambda phage L4 Stability analysis L5-6 Genetic switches

Research methods Qualitative Vs quantitative Understanding the relationship between objectives(research question) and variables is critical Information≠Data Information=data analysis Planning in advance is a must To include how data will be analyzed