Short Run Aggregate Supply

by / ⠀ / March 23, 2024

Definition

Short Run Aggregate Supply (SRAS) is an economic concept that expresses the total quantity of goods and services that a firm or firms are willing and able to produce during a specific period, given the price level, technology, and available resources. It’s based on the price/wage stickiness principle, which contends that businesses are slower to change wages and prices in response to demand or supply shifts. The SRAS curve typically slopes upwards indicating that higher price levels result in more output since firms can earn greater profits due to higher prices.

Key Takeaways

  1. Short Run Aggregate Supply (SRAS) refers to the total production of goods and services available at different price levels, taking into consideration the price of production, and is affected by changes in wages and raw materials.
  2. The SRAS curve is upward sloping, indicating that as price levels rise, producers are willing to supply more goods and services, until full employment or maximum capacity is reached.
  3. Any changes in the costs of production, technology or productivity, policies, taxes, or expectations about future changes can cause shifts in the SRAS curve.

Importance

The term “Short Run Aggregate Supply” (SRAS) is essential in finance as it represents the relationship between the total amount of goods produced by firms (aggregate output) and the overall price level in an economy within a short timeframe.

It reflects the adaptability and responsiveness of industries to price changes in the economy.

In the short run, some economic variables are fixed, like capital and technology, making supply less flexible.

Understanding the SRAS helps policymakers and economists to predict producer behavior against inflation or deflation, apply appropriate fiscal or monetary policies, and manage economic growth and stability effectively.

The adjustments in SRAS also illustrate how economic shocks – such as sudden changes in commodity prices or labor costs – can impact the economy’s output and price levels temporarily.

Explanation

Short Run Aggregate Supply (SRAS) is a key concept in macroeconomics which is primarily used to comprehend and analyze the immediate, time-sensitive movements and fluctuations in an economy. It aids in understanding the relationship between the total amount of goods produced by firms (aggregate supply) and the overall price level in the economy within a short period where the capital, scale of production, and technology remain constant.

Of importance, SRAS can change with shifts in labor, raw materials or capital inputs, thereby allowing businesses and policymakers to understand and respond to economic volatility or short-run economic situations. The purpose of SRAS is to provide a framework for observing and predicting short-term changes in an economy especially due to events like policy changes, business cycles, or economic shocks.

Policymakers and economists use SRAS to inform time-sensitive decisions and responses to changes in demand and supply. For instance, if aggregate demand rises sharply leading to heightened price levels (inflation), understanding SRAS provides a strategic angle for decision-makers to curb such inflation without causing unnecessary damage to the economy.

By studying shifts in the SRAS curve, economists and policy makers can take proactive steps or devise policies to stabilize the economy and prevent excessive fluctuations in the short term.

Examples of Short Run Aggregate Supply

Natural Disasters: In the event of a natural disaster like a hurricane, earthquake, or a flood, the short run aggregate supply (SRAS) in an economy can be affected. For example, a hurricane can destroy factories, infrastructure and make materials scarce. This would decrease the SRAS as firms can’t produce as much, limiting the total output of goods and services.

Technological Innovations: The introduction of a major technological advancement, such as the rise of the internet in the 1990s, can increase SRAS. In this example, the internet allowed companies to become much more productive and efficient, increasing the output of goods and services in the economy short-term.

Covid-19 Pandemic: During the initial stages of the pandemic, many economies saw a downturn with businesses shutting down due to public health measures and lower consumer spending. This caused a sharp decrease in SRAS, as businesses were unable to maintain pre-pandemic production and output levels.

Frequently Asked Questions About Short Run Aggregate Supply

What is the Short Run Aggregate Supply (SRAS)?

The Short Run Aggregate Supply (SRAS) refers to the total amount of goods produced by firms and supplied to the market at different price levels in the short run. It shows the quantity of real GDP that is supplied by the economy at different price levels during a time period when the prices of resources are fixed.

What is the slope of the Short Run Aggregate Supply Curve?

The slope of the SRAS curve is typically upward. This is due to the law of supply – as the price level rises, firms will be willing to supply more goods and services because it becomes more profitable to do so. However, in the short run, there may be limits to how much they can increase production due to fixed factors of production.

What shifts the Short Run Aggregate Supply curve?

Several factors can cause the SRAS curve to shift. These include changes in input prices (such as wages or the price of raw materials), changes in productivity, taxes and subsidies, and supply shocks such as natural disasters.

What is the difference between Short Run Aggregate Supply and Long Run Aggregate Supply?

The main difference between the Short Run Aggregate Supply (SRAS) and Long Run Aggregate Supply (LRAS) is that in the short run, some economic variables are variable while others are fixed, resulting in an upward sloping SRAS curve. In the long run, all economic variables are variable, leading to a vertical LRAS curve. This indicates that an economy’s total output is determined by its potential output in the long run, regardless of the price level.

What is the role of Short Run Aggregate Supply in the economy?

The SRAS plays an important role in the economy as it forms a part of the supply-side of the economic model, showing the quantity of goods and services supplied at different price levels. It is one half of the formula used to determine real GDP, and changes in the SRAS can have significant impacts on employment, inflation, and economic growth.

Related Entrepreneurship Terms

  • Macroecomonic Equilibrium
  • Price Level
  • Real Gross Domestic Product (GDP)
  • Supply Shock
  • Inflation Rate

Sources for More Information

  • Investopedia: A comprehensive website providing insight into financial terminology and concepts.
  • Khan Academy: Well-known educational website offering courses in various fields, including finance and economics.
  • Corporate Finance Institute: A professional website dedicated to teaching practical and relevant finance skills.
  • Economics Online: A website dedicated to economics learning and teaching, with pages related to financial terms and concepts.

About The Author

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Led by editor-in-chief, Kimberly Zhang, our editorial staff works hard to make each piece of content is to the highest standards. Our rigorous editorial process includes editing for accuracy, recency, and clarity.

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