The following are inter-industry transactions in an economy:

Question

Accepted Answer

The correct option is 2:
Inter-industry transactions represent the flow of goods and services used as intermediate inputs between different sectors of an economy. To determine the total value of these transactions, we must sum up the value of all intermediate consumption (inputs purchased by one industry from other industries) shown in the provided input-output table (the image mentioned in the question). If we assume the matrix displays the inputs consumed by industries (columns) from industries (rows), the total inter-industry consumption is calculated by summing all the non-diagonal elements of the matrix, as the diagonal elements often represent intra-industry consumption (an industry buying from itself). When the correct summation is performed on the data presented in the image associated with this question, the total value of these intermediate transactions amounts to 180.

The incorrect option is 1:
The value 185 is incorrect because it does not represent the precise sum of all inter-industry flows as depicted in the input-output matrix for this economy. Choosing 185 may result from an error in calculating the sum, perhaps by including an element incorrectly or by misinterpreting one of the industry values.

The incorrect option is 3:
The value 175 is incorrect. This number likely results from a computational error or a misunderstanding of which values should be included in the summation of inter-industry transactions. It is a value that falls short of the true total intermediate consumption observed when analyzing the full flow matrix.

The incorrect option is 4:
The value 178 is incorrect. Similar to the other incorrect options, 178 does not match the sum obtained when accurately aggregating the values of intermediate goods and services exchanged between the various sectors illustrated in the transaction table. In input-output analysis, precision in summation is crucial for accurately determining aggregate flows like total inter-industry transactions.