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Questions tagged [input-output]

Input-output models as used by Wassily Leontief.

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1answer
22 views

Why do the BEA's Use and Supply Tables have Industries (and not products) on the Rows?

I'm learning about Use and Supply tables, and all the tutorials (including this very nice video from the Singapore Department of Statistics) show that products are on the rows and industries are on ...
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1answer
32 views

How could you partition Household Food Expenditures into Producing Industries?

From the 2019 Consumer Expenditure Survey, the average household annual food expenditure was $8,169 for that year. There are subcategories such as "Food at Home" and "Food away from ...
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1answer
134 views

Why the definition of productive economy in Leontief Open Model is such?

Note: as an inter-disciplinary question, it has its twin on Mathematics Exchange: https://math.stackexchange.com/questions/4193896/why-the-definition-of-productive-economy-in-leontief-open-model-is-...
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Does aggregate CRS imply firm-level CRS?

Suppose that a production set $Y \subset \mathbb R^I$ has the following two properties: Constant returns to scale: $\forall y \in Y, \alpha \geq 0$, we have $\alpha y \in Y$. Separability: For some $\...
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2answers
172 views

Aggregation of the closure property of a production set

Consider an economy with finitely many goods $I$ and factors $F$. For each good $i$, let $Y_i \subset \mathbb R^I \times \mathbb R^F_{\geq 0}$ denote a production set for $i$. Assume each $Y_i$ has ...
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8 views

Rebalancing an Input Output model to reflect a sudden production drop

Given a (balanced) MRIO, and assuming a known decrease % in productivity for a given region+industry, what would be the recommended way to rebalance the table to a new equilibrium? Methods I can think ...
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1answer
17 views

Share of domestic and foreign monetary flows between sectors of a country

In multiregional input-output analysis, monetary flows between or within economic sectors are given in a transaction matrix T. Both, the rows and the columns, have the same index (Region 1 Sector 1, ...
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1answer
19 views

How to estimate the labor time required to produce all necessities in a given economy (assuming all goods/services are produced domestically)?

I want to estimate how much labor time would have to be spent on producing/providing necessities in an economy if all necessities were produced/provided domestically (without imports). Assuming that ...
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38 views

Is an input-output model an equilibrium model?

I know the difference between CGE and input-output models. But can an input-output model be called a equilibrium model?
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16 views

Returns to Scale off a figure

This is the table given for levels of output for different levels of inputs. \begin{pmatrix} Q & K & L\\ 100 & 3 & 6\\ 200 & 5 & 10\\ 300 & 7.5 & 15 \\ 400 & 10 &...
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2answers
193 views

Optimal Production Input in Relation to Cost Minimization Problem

I was doing my homework and got really confused about how to approach the optimal levels of inputs when there are three variables. My current understanding is that the problem is to solve the ...
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1answer
178 views

How to prove that a concave production imply that the input requirement sets are convex?

According to page 7 of this slide, "A convex production set Y implies that the associated input requirement set V(y) is convex". How can one go about proving it?
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Data for CGE experiments?

Does anyone know of any open-source U.S. data sets in a format appropriate to whole-economy CGE econometric modeling, i.e. data sets covering the entire economy, divided into at least 20 sectors, with ...
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1answer
147 views

In a social accounting matrix, what does Capital refer to?

In the process of building a social accounting matrix for Panama, I am trying to understand what capital refers to. The Panamanian National Accounts have tables on capital, but they describe gross ...
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1answer
89 views

When building a social accounting matrix, do you input domestic intermediate demand or total intermediate demand?

I have been trying to build a social accounting matrix (SAM) after building an input-output table (IOT). In the IOT, I had to distinguish between total intermediate demand (which includes import of ...
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1answer
508 views

How to build a Social Accounting Matrix from an Input-Output Table?

I built an Input-Output table (IOT) with the industryXindustry format because I thought it was a building block to build a social accounting matrix (SAM). But now I realize that I can't transpose the ...
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1answer
56 views

What is the difference between personal consumption expenditure price and PCE quantity?

What is the difference between these two things? How is PCE price different from PCE quantity? Also, I am confused about the difference between PCE quantity and measure of real output. For example, ...
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0answers
310 views

How is Aggregate Supply(Willing) equal to National Income(Actual)?

Acc. to definition of Aggregate Supply It is the total value of final goods and services that the producers are willing to supply in country . Definition of National Income It is the value of ...
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2answers
1k views

What does the Leontief Inverse represent? (Intuitive Meaning or Real World Concept)

I encountered that nobody, even my profs and lecturers so far, has an intuitive way to explain what the Leontief inverse represents. Does somebody here? As most people here would know, it goes: $\ ...
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1answer
3k views

Quasi Fixed Input

What is quasi fixed cost? What is the difference between fixed and quasi-fixed cost? Is capital, land and labour considered a quasi fixed cost for a firm? I have read that when the firm wants to take ...
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1answer
2k views

Is the capital-output ratio in developing countries low or high?

For a developing economy, I've seen sources claiming that the capital-output ratio (more commonly known as ICOR) is high (e.g. here and here), while other sources claiming that it's low, like below (...
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179 views

Relationship Input Distance Function and Output Distance Function

I was wondering if anybody knows how input distance functions (IDF) and output distance functions (ODF) relate to each other. One of the advantages of distance functions over cost and revenue ...
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129 views

Regional disaggregation of a national input-output table

I am trying to disaggregate a "national" input-output table into three regions using Simple Location Quotients (SLQs) and RAS balancing. In particular, I'm trying to use the "Two region logic with ...
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1answer
217 views

What would the determinant of the input-output matrix represent? What is the intuition?

I know that the determinant of a 2x2 matrix represents the oriented area of the parallelogram represented by the vectors in the matrix. For 3x3 or higher order matrix it represents the oriented volume....
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1answer
245 views

Have social accounting matrices and input output models fallen out of fashion? if so, why?

My perception may be uninformed but 'worldwide' I believe collection of official data on input output tables of economies dont seem to be keeping up with the times. Im aware that compilation of such ...
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1answer
134 views

Where can I find information on relationships between different commodities?

I'm looking for information about relationships between commodities. Essentially, what things do you need to use to produce other things. The info doesn't need to reflect the current state of ...
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0answers
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Evaluate projects'/investments' impact on whole economy

I have 200 ROI investment examples (projects) in a specific industry, say manufacturing of microprocessors. How and what methods can I use to evaluate the impact (GDP, added value, job growth, etc.) ...
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3answers
267 views

How to deal with a singular Leontiev inverted matrix?

I am currently studying and experimenting the input-output methodology. It is a 1930's method based on national accountings that allows to measure the interindustry flow of good and services. ...