IS-LM Model: Combines goods market (IS) and money market (LM) to explain general equilibrium in the short run.
Short Run Assumptions:
Price levels (P) remain constant.
Fixed inflation (π) and expected inflation (ππ).
Output Determinants: Demand (Z) greatly influences output.
Focus Shift: Moving from demand examination to the supply side of the economy, specifically how firms hire workers to produce goods and services.
Basic facts about the labor market.
Definition and cyclicality of labor-related variables.
Overview of a model for the labor market.
Mechanisms of price determination in the labor market.
Wage determination processes.
Understanding the natural rate of unemployment and the natural level of output.
Employment (N): Total number of currently employed individuals.
Unemployment (U): Individuals who are not employed but actively seeking work.
Out of Labor Force (O): Individuals not seeking employment.
Labor Force (L): Total of employed and unemployed individuals: L = N + U.
Unemployment Rate (u):
Percentage of the labor force that is unemployed.
Calculated as (U / L) x 100.
Employment Rate: Percentage of the working-age population that is employed.
Participation Rate: Percentage of the working-age population that is either employed or actively looking for work.
Discouraged Workers: Individuals who have stopped searching for jobs and are not included in the labor force.
Average Duration:
Approximately 3 months as of 2016.
Many European countries report greater average durations.
Chart Trends: Illustrate average duration of unemployment across countries (2001-2016), highlighting regional employment recovery differences.
Relation to Unemployment Rate (u): High unemployment rates tend to correlate with longer durations of unemployment.
Employment to Unemployment Transition: During high unemployment periods, employed individuals face significant job loss risks, resulting in a high monthly unemployment percentage.
Long-term Unemployment: When general unemployment rates rise, finding new employment becomes increasingly difficult, leading to prolonged unemployment periods.
Research Findings: Different groups in the labor market respond variably to changes in national unemployment rates.
Example: Female workers tend to be less sensitive to rising unemployment rates during economic downturns.
Price Formula: Price (P) = (1 + Markup) x Marginal Cost (MC) of production.
Markup Representation: Indicates the market power of firms; competitive markets exhibit a zero markup.
Cost Factors: Costs related to hiring additional workers (W), with the marginal product of labor (A) crucial for output determination.
Nominal Wage Equation: Nominal wage (W) is related to Marginal Product of Labor (A), Expected Price Level (Pe), and factors including the unemployment rate (u).
Wage Negotiation Dynamics: Wages are affected by worker productivity, market conditions, and employee bargaining power; they tend to be 'sticky' and not frequently adjusted.
Defined as the equilibrium unemployment rate where wage-setting and price-setting align.
Wage-Setting (WS) Relation: Explains how wages depend on labor productivity and unemployment factors.
Price-Setting (PS) Relation: Describes how prices relate to wages and markups.
Shifts in Relations: Changes in unemployment benefits and labor market dynamics can shift these relations, affecting the natural unemployment rate (un).
Policies Influencing Firms: Favorable policies can lead to increased market power and reduced employee benefits, contributing to higher unemployment rates.
Discussion of the Phillips Curve, focusing on the relationship between inflation (π) and unemployment (u).
Reinforcement of IS-LM-PC Model: Developments as outlined in Chapter 9.