Unit one Ways oflearning Part I Part II Text a Learning, Chinese-Style Part III Textb Children and money Part Iv Theme-Related Language learning task Writing Strategy: Using comparison and contrast in essay writing
Directions: There are 3 passages in this unit. Each passage is followed by some questions or unfinished statements For each of them there are four choices marked A), B), C)and
Reading Comprehension Directions: There are 3 passages in this unit. Each passage is followed by some questions or unfinished statements For each of them there are four choices marked A), B), C)and
Unit 5 Reading Comprehension Directions: There are 3 passages in this unit. Each passage is followed by some questions or unfinished statements For each of them there are four choices marked A), B), C)and
Unit 1 Reading o Directions: There are 3 passages in this unit. Each passage is followed by some questions or unfinished statements For each of them there are four choices marked A), B), C)and
Choosing a Topic Start with a general area or set of questions Make sure you are interested in the topic Use on-line services such as EconLit to investigate past work on this topic Narrow down your topic to a specific question or issue to be investigated Work through the theoretical issue Economics 20-Prof. Anderson
Why Use Instrumental Variables? e Instrumental Variables(IV)estimation is used when your model has endogenous xs That is, whenever Cov(x,l)≠0 Thus. i can be used to address the problem of omitted variable bias 2 Additionally iv can be used to solve the classic errors-in-variables problem 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
