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Report on a Survey of Changes in Total Annual Expenditures for Florida Counties Before and After
Purchase of Touch Screens and A Comparison of Total Annual Expenditures for Touch Screens and
Optical Scanners.
By Rosemarie Myerson and Richard Myerson (contact romyerson@comcast.net)
12/1/05
PURPOSE
This project was undertaken to study the changes in total expenditures by Florida’s 67 Supervisor of
Elections offices before and after electronic touchscreen voting was instituted and to compare the
effect of the type voting system on costs.
BACKGROUND
Florida mandated that all counties replace punch cards and other non-electronic voting systems with
either optical scanners or touch screen voting machines prior to the 2002 elections. The purchase
costs for the new voting equipment were reimbursed to the Supervisor of Elections’ office by the
county’s commissioners so that the machine purchasing expenditures were never included in the
Supervisor of Election’s annual expenditures. Counties that already owned optical scanners before
2001 did not have to change systems. There were 13 counties that responded completely to this
survey that did not need to change their voting machines since they were already using optical
scanners .
METHOD
We requested data from the 67 counties in Florida (see enclosed copy of request letter). Despite the
fact that 50 counties responded, we were limited to analyzing the data of 33 counties because the
other counties could not provide full data on the number of registered voters and /or total
expenditures for the years selected.
To compare changes in the costs for each county for touchscreens versus optical scanners, total
annual expenditures from the immediate pre- touchscreen period (2000 and 2001) were compared
with the post- touch screen data (2003 and 2004). These four years were used in order to include in
each period one presidential election year and one with no federal elections. Data from 2002 was
excluded because in 2002 all but 13 of the 33 counties changed their voting systems which probably
engendered special expenditures for education, training, special handling and storage. Also many
counties did not include 1999 data so we could not compare three years pre- to three years post-
touch screen purchase.
ANALYSIS
A comparison of the difference in expenditures per 1000 voters of the 11 counties with touchscreen
systems versus those 22 counties with optical scanning systems for the 2003/2004 period could not
be meaningful for the following reasons:
1) County size had an effect on the cost, Chart 1 shows a scatter plot of the 2003/2004 data for each
county’s costs per thousand voters versus the number of registered voters. The counties with less
than 40,000 registered voters had higher costs per 1000 voters than the larger counties. This
unusually high average annual expenditure implies some minimum costs for all counties independent
of size of voting population.
2) There are also many unknown expenditure variables in county to county data such as what
functions are included in each county’s annual expenditures, some counties use different accounting
protocols, some show debt service as an expense. These and uncertainties as to what special
services a county includes make it difficult to make conclusions regarding total expected annual cost
differences between optical scan ownership and touchscreen ownership. Therefore the final analysis
looks at the changes for each county in expenditures per 1000 registered voters from the pre touch
screen period to the post period .
We used the average of 2003 and 2004 expenditures per 1000 registered voters divided by the
average of the 2000 and 2001 expenditures per 1000 registered voters to determine the percentage
change for each county. We then took the average of the percentage change for each of the 11
touchscreen counties and compared these to the average of the percentage change for each of the
22 optical scan counties. The statistical analysis showed that touchscreen counties had an average
increase of 57.3% in per-capita cost versus a value of 16.7% as the average of per-capita increase
among counties with optical scanners. The difference between these two averages is 40.6% (57.3%
minus 16.7%). This indicates a 40.6% higher increase in expenses for touchscreen counties than for
optical scanner counties. This is significant at a 95% confidence level. Chart 2 is a scatter plot of the
percent change of the expenditures in each county per 1000 registered voters before and after the
state mandated that every county use only electronic voting machines. A comparison of the
expenditure changes for counties with optical scan in both periods (O/O) to those that bought them in
2002 (P/O) shows 6.9% higher increase for O/O counties than the P/O counties showing no savings
by not changing..
CONCLUSION
The annual increase for optical scanner cost may be due partly to inflation and partly to special
demands by the State.
The results from this study show that a county’s buying touchscreens can increase their annual
expenditures of the order of 57.3% and a county buying optical scanners can increase their
expenditures of the order of 16.7%. Optical scanners have the further advantage of providing a voter
verified paper ballot that can be used to audit the machine’s data and for any needed independent
recount. To match this auditing advantage of optical scanners, the present touch screen systems
would require the county to purchase and maintain a large number of printers, an additional set of
costs that would significantly increase the county’s annual expenses.
One factor that may explain why having touchscreens cost so much more than optical scanners is
because the county has to own and maintain so many more machines. We estimate that one optical
scanner can count handle six voter’s votes a minute (or 360 per hour) as they are cast but because it
takes a voter at least three minutes to vote with touchscreens; it would take at least 18 touchscreens
to perform per hour as well as optical scanners. In order not to have huge waiting lines on Election
Day, most counties buy at least 10 touchscreens per precinct. Thus while one optical scanner
adequately serves a precinct, the precinct needs approximately ten times as many touchscreens in
order not to have huge lines of voters waiting to vote. |