The national data are taken from the U.S. BEA Annual Input-Output Accounts. The Supply (Make) tables describe the production of commodities by industry and the Use tables describe the commodities used by industries in the production of their outputs, along with the value added components of each industry and the final demand activity demands for commodities. Further, gross product by industry data are presented by gross product component.
As an additional service, we will begin in 2018 providing users with detailed sector 2007 U.S. Benchmark Accounts for use within IO-Snap. 2012 Benchmark Accounts will be made available as soon as possible following BEA release. Contact us for additional information.
With IO-Snap, you receive data for the U.S., all 50 states, and the District of Columbia, for all years for which IO-Snap annual input-output data are available. Data include employment and earnings earnings, and gross product by industry. The software supports viewing these variables in multiple tabs across states or for a single state at different time periods.
Our software supports the generation of Supply and Use Tables for the US, for states, or for groups of states. We have some multi-State regions preset for ease of use, including BEA regions, Census Bureau regions and divisions, and others. With IO-Snap you also can select any number of states of your choice to combine into regions.
A second option is to begin with a state or multi-state region to use as a template, then modify the selected regionalization variable to match a region of your own design. Such a region might be larger than a single state, such as a State plus fringe counties from border states, or a perhaps a metro region of your choice. Any database you might access can be used to modify the regionalization process.
Lastly, highly detailed tables for user-specified multi-county or state regions will be made available upon request for an additional fee.
The data we used come from the Bureau of Economic Analysis. We begin with the Annual Input-Output Accounts at the Summary Level. We won't pretend to do a better job than the BEA in describing their data, but instead point you to their Industry Economic Accounts Information Guide.
We provide three options with respect to the government sectors. Users can choose to accept the four government sectors initial listed within the BEA summary data; aggregate to two sectors -- Federal and State & Local; or aggregate to a single Total Government sector. These options are particularly relevant at the sub-national level where less detailed data are generally less easily obtained.
Users also can select default aggregation schemes or create their own.
Once a region has been selected and the user is satisfied with the data, requirements tables can be generated. These can be in commodity-by-commodity, industry-by-industry, or industry-by-commodity format.
Commodity final demands can be specified, and impacts assessments results can be produced. Standard results can be generated, including income and employment impacts, disaggregated and total multipliers.
Further, prior to generating the requirements tables, the user can modify Use table columns (including final demand distributions) and Make (Supply) table rows. Consistency checks ensure compatibility between the modified tables.
This ability to edit is, in fact, an essential feature when a user embarks upon building a model of a region whose boundaries are not coincident with state boundaries, since final demands in this case will always need to be altered.