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

This paper contains the chapters on public enforcement of law and on criminal law from a general, forthcoming book, Foundations of Economic Analysis of Lany(Harvard University Press, 2003 ). By public law enforcement is meant the use of public law enforcement agents

Course Description Macroeconomics is the most disputed, confused yet excited field in economics. This course introduces you how economists think about those macroeconomic problems such as inflation, unemployment and recession, and how macroeco could be used to resolve these problems. We will find that economists may give you many different answers. Yet behind their different answers is the difference in the framework of macroeconomic analysis. The course will thus introduce you two major

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 study ho lOW money and interest rate is determined in the money and financial market The money and financial market is the market in which money and various financial assets(such as, bonds and stocks) are exchanged

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