Problems with 2013 county data for New York
[attachment=602]ScreenGrabStatenIsland2.pdf[/attachment]
Hey IMPLAN,
I recently bought 2013 county files for the state of New York. In many cases, the model overview is showing personal income that is greater (much greater) than gross regional product. Unless other income or production taxes are negative (and significantly so) this is not possible. The value added components appear to be correct. That is, the model overview agrees with the study area data. However, the personal income appears to be way off. Additionally, and this may be related to the previous problem, I am finding personal income values for sectors in finance and real estate that don't make sense. In my Richmond model, the average annual income for sectors 435, 436, and 439 is quite low ($12,902, $7,077 and $8,025, respectively) that are not consistent with nearby counties, the state of New York, or 2007 Richmond values. Can you please investigate that too?
See screen grabs for additional assistance.
Best, Alec
-
Hi Alec, While Personal Income includes only positive elements (please see this short paper for the items included in Personal Income: https://implan.com/index.php?view=download&alias=232-money-income-vs-personal-income&category_slug=version-three-files&option=com_docman&Itemid=1480), GRP includes OPI and TOPI, which can be negative for some sectors in some years. As you can see in the attached spreadsheet, the raw data for NY show negative OPI for a number of BEA sectors, most of which are distributed to more than one IMPLAN sector. Please see this webpage for more on how we calculate OPI and please let us know if you have additional questions or concerns: http://implan.com/index.php?option=com_content&view=article&id=641:641&catid=259:KB37. [attachment=603]NY_NegativeOPI.xlsx[/attachment] -
Thanks for the spreadsheet. I understand that certain industries can have negative OPI and TOPI. I have run across that many times before. However, if you look at the screen shot that I attached, you will see that total personal income exceeds total GRP, even though total OPI and and total TOPI are positive. That's not possible. Please advise. -
Hi Alec, Your instinct is right on about Personal Income not exceeding GDP, but this 'rule' really only applies at the U.S. level due to the following reasons: 1) not everyone lives where they work (Employee Compensation is workplace-based, while Personal Income is residence based), 2) the Federal government may make more payments to a particular state or county than it receives in revenue from that state or county, and 3) likewise, State governments may make more payments to a particular county than it receives from that county. I hope this explanation helps. Thanks!
Please sign in to leave a comment.
Comments
3 comments