Re: [EM] Anyone got a good analysis on limitations of approval andrange voting? (long)

2009-11-10 Thread robert bristow-johnson


On Nov 9, 2009, at 11:48 PM, Matthew Welland wrote:


Approval
Does not meet the desire of some to be able to differentiate  
between I like, I like a lot etc. (note: this seems like  
perfectionism to me. Large numbers of voters and opinions all over  
the bell curve should make individual expression at the greater  
level of granularity irrelevant.)


we should be able to express our preferences.  Approval reduces our  
metric of preference to a 1-bit number, a dichotomy.  i would like to  
have more bits in that number.



Suite of complicated systems that strive to reach Condorcet ideals.
No regular bloke would ever trust 'em because you can't explain how  
they work in one or two sentences.


Round Robin tournament, Ranked Ballot:  The contestant who wins in a  
single match is the candidate who is preferred over the other in more  
ballots.  The candidate who is elected to office is the contestant  
who loses to no one in the round robin tournament.


that's two sentences and two labels.


Technically superior to other systems.
Not clear what problem with approval they would solve. Unless you  
are a perfectionist and insist that individuals express nuances of  
opinion...


like which candidate they like better than the other candidate?


It was very tedious voting in any of the ranking systems.


it's tedious to decide who you like better?  who you would prefer if  
any two candidates are presented?


i will say this: even though it is prohibited in the present IRV that  
Burlington VT has, there is no reason that ties should not be allowed  
in any ranked ballot.


but i would agree it would be tedious to allocate preference points  
in Range.



So, to re-frame my question. What is the fatal flaw with approval?


it's essentially like Plurality except you get to mark X on more  
than one candidate (like you do in multi-seat races).  i don't like  
it for multi-seat (in the state senate for the county i am in, all of  
our senators are elected from the county at large and there are 6 for  
my county) i always think i'm hurting a candidate i actively support  
by voting for another candidate from the same party that i approve  
of.  so then i mark X on only one candidate and, if enough people  
vote tactically like that, the election works like Plurality.  we  
want an improvement to Plurality because we might like a three or  
four party system (or 3 parties and viable independents).  we want to  
not have to consider the likelihood of wasting our vote by deciding  
who to Approve of.  we know we approve of the candidate we support,  
but it is a tactical decision to decide if you approve of a candidate  
you would normally approve of but is not the candidate that you have  
actively supported.


like what if you're a little old lady and you like and support you  
representative legislator for re-election.  and you support him over  
any likely candidate from the other party, and it might be close so  
you wanna feel like you helped him.  but your grandson that you  
cherish and are proud is running as an independent.  in fact you gave  
money to your grandson's campaign.  you support your grandson.  you  
don't know if he'll win or not, but you do not want to harm his  
chances.  you also don't want your good ol' incumbent you've always  
supported.  you want to make sure he doesn't lose to the other major  
party candidate.  but you wouldn't mind harming his chances if the  
race ended up between him and your grandson.


is that putting it in an accessible context?  so then with Approval  
voting, for sure this grandma marks X by her grandson's name.  but  
does she or doesn't she Approve her good ol' incumbent?  Approval  
doesn't let you mark it Approve except in the race with my top choice.


I'm not interested in subtle flaws that result in imperfect  
results. I'm interested in flaws that result in big problems such  
as those we see with plurality and IRV.


how 'bout electing the wrong candidate?

i mean isn't that the essential flaw?  e.g. the flaw with the  
Electoral College is that sometimes it elects the wrong candidate.   
it does pretty good when it selects the same winner as the popular  
vote, but when it disagrees with the popular vote it *never* creates  
more legitimacy or confidence in the election results.  so then why  
have it?  what good is it?  it's either ineffective in filtering  
the popular vote or, when it *is* effective it makes matters worse.   
such a useful device!


with Condorcet you elect the candidate that, from the set of voters  
who have an opinion, is preferred by a majority of that set over any  
other candidate that you pick.


any winner of an election system that elects a candidate who is not  
the Condercet winner, has elected someone whom was rejected by the  
voting majority in favor of the Condorcet winner who wasn't elected.   
how is that congruent to the principle of democracy?  do we have  
elections and explicitly give it to the candidate 

Re: [EM] Anyone got a good analysis on limitations of approval andrange voting? (long)

2009-11-10 Thread Jobst Heitzig
Dear Matthew,

you wrote:
 Suite of complicated systems that strive to reach Condorcet ideals.

1. No regular bloke would ever trust 'em because you can't explain
   how they work in one or two sentences.

Well, here's a very simple Condorcet system which can easily be
explained in two sentences:

1. Let voters vote on candidate pairs, successively replacing the loser
with a different candidate, in a random order of candidates.
2. As soon as all candidates have been included, the winner of the last
pair is declared the overall winner.

This system is arguably the earliest example of a Condorcet system. It
was devised by Ramon Llull in the 13th century and was successfully used
for elections in monastaries. It is easily understood by the common man
since it resembles a procedure frequently used in child play.

Yours, Jobst


Matthew Welland schrieb:
 Thanks all for the discussion and pointers. I still can't concretely
 conclude anything yet but here are some rambling and random thoughts
 based on what was said and my prior experiences.
 
 Plurality
 
1. Leads to two lowest common denominator parties which are not
   accountable to the voters. This conclusion supported by real world
   observation.
2. Feels right to the non-critical mind, one man, one vote
3. Very fast at the polls
 
 Approval
 
1. Encourages participation of minor parties and thus should keep the
   big guys paying attention to a wider base.
2. Almost zero marginal implementation cost. Hanging chads count just
   fine :)
3. Understandable by anyone but feels wrong at first not fair, you
   get more than one vote.
4. Apparently has a terrible flaw but no one seems to be able to
   articulate it in layman terms. No real world experience available
   to illustrate the problem. Here is where I need to learn more.
   Data provided to date is unconvincing to me.
5. Does not meet the desire of some to be able to differentiate
   between I like, I like a lot etc. (note: this seems like
   perfectionism to me. Large numbers of voters and opinions all over
   the bell curve should make individual expression at the greater
   level of granularity irrelevant.)
6. Very fast at the polls. Pick yer favorites and head home for beer
   and telly.
 
 Range
 
1. Can break the vicious cycle of plurality
2. Not voting for someone at all can have a strong influence on
   election outcome. This is very non-intuitive and would take some
   getting used to.
3. Allows for nuanced voting.
4. Pain in the ass at the polls (relatively speaking). You can't
   safely disregard the candidates you don't care about so you *have*
   to assign everyone a ranking, possibly addressable by defaulting
   to zero for all candidates? This is considered a feature and I
   agree it has merit. But in reality it is a deal breaker for joe
   six pack and co. (and for lazy sobs like me).
 
 IRV
 
1. Demonstrably broken. 'nuff said.
 
 Suite of complicated systems that strive to reach Condorcet ideals.
 
1. No regular bloke would ever trust 'em because you can't explain
   how they work in one or two sentences.
2. Technically superior to other systems.
3. Not clear what problem with approval they would solve. Unless you
   are a perfectionist and insist that individuals express nuances of
   opinion... 
 
 Some time ago I put together a site (primitive and unfinished[i]) to
 promote approval voting and in the process I spent a lot of time trying
 different systems on the web and repeatedly testing my own site. I
 noticed some interesting things from all that playing around.
 
1. It was very uncomfortable to go back to plurality after trying
   other systems. It feels unfair and broken.
2. It was very tedious voting in any of the ranking systems.
3. Approval felt boring but good. 
 
 I have checked in on this list now and then and I admit I don't have the
 time or skills to follow all the arguments but it strikes me that
 approval voting is good enough to break the deadlock, at least in US
 politics and that it doesn't have any major flaws. The very
 understandable desire to be able to articulate in a finer grained way in
 your vote is perfectionism. With millions of voters, for every person on
 the fence about a particular candidate there will be some to either side
 who will essentially make or break the vote. If you are on the fence,
 approve or disapprove, it won't matter.
 
 So, to re-frame my question. What is the fatal flaw with approval? I'm
 not interested in subtle flaws that result in imperfect results. I'm
 interested in flaws that result in big problems such as those we see
 with plurality and IRV.
 
 
 [i] www.approvalvote.org
 
 
 
 
 
 
 Election-Methods mailing list - see http://electorama.com/em for list info


Re: [EM] Anyone got a good analysis on limitations of approval andrange voting? (long)

2009-11-10 Thread Jobst Heitzig
Dear Robert,

you wrote:
 Round Robin tournament, Ranked Ballot:  The contestant who wins in a
 single match is the candidate who is preferred over the other in more
 ballots.  The candidate who is elected to office is the contestant who
 loses to no one in the round robin tournament.
 
 that's two sentences and two labels.

But it's incomplete as well...

Yours, Jobst

Election-Methods mailing list - see http://electorama.com/em for list info


Re: [EM] Anyone got a good analysis on limitations of approval andrange voting? (long)

2009-11-10 Thread Juho
This method is also quite hand countable (unlike many other Condorcet  
methods). That was certainly an important feature in those days :-).  
It has some randomness in the results (when no Condorcet winner exists).


Here's another one. Elect the candidate that wins all others in  
pairwise comparisons. If there is no such candidate, elect the one  
that needs least number of additional votes to win all others.  (This  
is of course the famous minmax(margins) that I have promoted quite  
often.)


Juho


On Nov 10, 2009, at 12:57 PM, Jobst Heitzig wrote:


Dear Matthew,

you wrote:

Suite of complicated systems that strive to reach Condorcet ideals.

  1. No regular bloke would ever trust 'em because you can't explain
 how they work in one or two sentences.


Well, here's a very simple Condorcet system which can easily be
explained in two sentences:

1. Let voters vote on candidate pairs, successively replacing the  
loser

with a different candidate, in a random order of candidates.
2. As soon as all candidates have been included, the winner of the  
last

pair is declared the overall winner.

This system is arguably the earliest example of a Condorcet  
system. It
was devised by Ramon Llull in the 13th century and was successfully  
used
for elections in monastaries. It is easily understood by the common  
man

since it resembles a procedure frequently used in child play.

Yours, Jobst


Matthew Welland schrieb:

Thanks all for the discussion and pointers. I still can't concretely
conclude anything yet but here are some rambling and random thoughts
based on what was said and my prior experiences.

Plurality

  1. Leads to two lowest common denominator parties which are not
 accountable to the voters. This conclusion supported by real  
world

 observation.
  2. Feels right to the non-critical mind, one man, one vote
  3. Very fast at the polls

Approval

  1. Encourages participation of minor parties and thus should keep  
the

 big guys paying attention to a wider base.
  2. Almost zero marginal implementation cost. Hanging chads count  
just

 fine :)
  3. Understandable by anyone but feels wrong at first not fair, you
 get more than one vote.
  4. Apparently has a terrible flaw but no one seems to be able to
 articulate it in layman terms. No real world experience  
available

 to illustrate the problem. Here is where I need to learn more.
 Data provided to date is unconvincing to me.
  5. Does not meet the desire of some to be able to differentiate
 between I like, I like a lot etc. (note: this seems like
 perfectionism to me. Large numbers of voters and opinions all  
over

 the bell curve should make individual expression at the greater
 level of granularity irrelevant.)
  6. Very fast at the polls. Pick yer favorites and head home for  
beer

 and telly.

Range

  1. Can break the vicious cycle of plurality
  2. Not voting for someone at all can have a strong influence on
 election outcome. This is very non-intuitive and would take some
 getting used to.
  3. Allows for nuanced voting.
  4. Pain in the ass at the polls (relatively speaking). You can't
 safely disregard the candidates you don't care about so you  
*have*

 to assign everyone a ranking, possibly addressable by defaulting
 to zero for all candidates? This is considered a feature and I
 agree it has merit. But in reality it is a deal breaker for joe
 six pack and co. (and for lazy sobs like me).

IRV

  1. Demonstrably broken. 'nuff said.

Suite of complicated systems that strive to reach Condorcet ideals.

  1. No regular bloke would ever trust 'em because you can't explain
 how they work in one or two sentences.
  2. Technically superior to other systems.
  3. Not clear what problem with approval they would solve. Unless  
you
 are a perfectionist and insist that individuals express  
nuances of

 opinion...

Some time ago I put together a site (primitive and unfinished[i]) to
promote approval voting and in the process I spent a lot of time  
trying

different systems on the web and repeatedly testing my own site. I
noticed some interesting things from all that playing around.

  1. It was very uncomfortable to go back to plurality after trying
 other systems. It feels unfair and broken.
  2. It was very tedious voting in any of the ranking systems.
  3. Approval felt boring but good.

I have checked in on this list now and then and I admit I don't  
have the

time or skills to follow all the arguments but it strikes me that
approval voting is good enough to break the deadlock, at least in US
politics and that it doesn't have any major flaws. The very
understandable desire to be able to articulate in a finer grained  
way in
your vote is perfectionism. With millions of voters, for every  
person on
the fence about a particular candidate there will be some to either  
side

who will essentially make or break the vote. If you are on 

Re: [EM] Anyone got a good analysis on limitations of approval andrange voting? (long)

2009-11-10 Thread Matthew Welland
On Tuesday 10 November 2009 03:57:34 am you wrote:
 Dear Matthew,

 you wrote:
  Suite of complicated systems that strive to reach Condorcet ideals.
 
 1. No regular bloke would ever trust 'em because you can't explain
how they work in one or two sentences.

 Well, here's a very simple Condorcet system which can easily be
 explained in two sentences:

 1. Let voters vote on candidate pairs, successively replacing the loser
 with a different candidate, in a random order of candidates.
 2. As soon as all candidates have been included, the winner of the last
 pair is declared the overall winner.

 This system is arguably the earliest example of a Condorcet system. It
 was devised by Ramon Llull in the 13th century and was successfully used
 for elections in monastaries. It is easily understood by the common man
 since it resembles a procedure frequently used in child play.

That is an excellent description. Thanks.

I've always liked that specific system and think being Condorcet compliant 
makes great sense in smaller elections or where a perfect choice is 
critical.

Implementing it on a large scale seems tough and actually voting in it seems 
tedious. If there are N candidates am I forced to make N-1 decisions? If 
there is a short circuit way to do the vote then it might be workable. 

The improvement over approval still seems marginal, especially in large 
elections and I think the cost for implementing, tabulating and voting is 
much higher,


 Yours, Jobst

 Matthew Welland schrieb:
  Thanks all for the discussion and pointers. I still can't concretely
  conclude anything yet but here are some rambling and random thoughts
  based on what was said and my prior experiences.
 
  Plurality
 
 1. Leads to two lowest common denominator parties which are not
accountable to the voters. This conclusion supported by real
  world observation.
 2. Feels right to the non-critical mind, one man, one vote
 3. Very fast at the polls
 
  Approval
 
 1. Encourages participation of minor parties and thus should keep
  the big guys paying attention to a wider base.
 2. Almost zero marginal implementation cost. Hanging chads count
  just fine :)
 3. Understandable by anyone but feels wrong at first not fair, you
get more than one vote.
 4. Apparently has a terrible flaw but no one seems to be able to
articulate it in layman terms. No real world experience available
to illustrate the problem. Here is where I need to learn more.
Data provided to date is unconvincing to me.
 5. Does not meet the desire of some to be able to differentiate
between I like, I like a lot etc. (note: this seems like
perfectionism to me. Large numbers of voters and opinions all
  over the bell curve should make individual expression at the greater
  level of granularity irrelevant.)
 6. Very fast at the polls. Pick yer favorites and head home for beer
and telly.
 
  Range
 
 1. Can break the vicious cycle of plurality
 2. Not voting for someone at all can have a strong influence on
election outcome. This is very non-intuitive and would take some
getting used to.
 3. Allows for nuanced voting.
 4. Pain in the ass at the polls (relatively speaking). You can't
safely disregard the candidates you don't care about so you
  *have* to assign everyone a ranking, possibly addressable by defaulting
  to zero for all candidates? This is considered a feature and I agree it
  has merit. But in reality it is a deal breaker for joe six pack and co.
  (and for lazy sobs like me).
 
  IRV
 
 1. Demonstrably broken. 'nuff said.
 
  Suite of complicated systems that strive to reach Condorcet ideals.
 
 1. No regular bloke would ever trust 'em because you can't explain
how they work in one or two sentences.
 2. Technically superior to other systems.
 3. Not clear what problem with approval they would solve. Unless you
are a perfectionist and insist that individuals express nuances
  of opinion...
 
  Some time ago I put together a site (primitive and unfinished[i]) to
  promote approval voting and in the process I spent a lot of time trying
  different systems on the web and repeatedly testing my own site. I
  noticed some interesting things from all that playing around.
 
 1. It was very uncomfortable to go back to plurality after trying
other systems. It feels unfair and broken.
 2. It was very tedious voting in any of the ranking systems.
 3. Approval felt boring but good.
 
  I have checked in on this list now and then and I admit I don't have
  the time or skills to follow all the arguments but it strikes me that
  approval voting is good enough to break the deadlock, at least in US
  politics and that it doesn't have any major flaws. The very
  understandable desire to be able to articulate in a finer grained way
  in your vote is perfectionism. With millions of 

Re: [EM] Anyone got a good analysis on limitations of approval andrange voting? (long)

2009-11-10 Thread Dave Ketchum

On Nov 10, 2009, at 7:58 AM, Matthew Welland wrote:

On Tuesday 10 November 2009 03:57:34 am you wrote:

Dear Matthew,

you wrote:
Suite of complicated systems that strive to reach Condorcet  
ideals.


  1. No regular bloke would ever trust 'em because you can't explain
 how they work in one or two sentences.


Well, here's a very simple Condorcet system which can easily be
explained in two sentences:

1. Let voters vote on candidate pairs, successively replacing the  
loser

with a different candidate, in a random order of candidates.
2. As soon as all candidates have been included, the winner of the  
last

pair is declared the overall winner.

This system is arguably the earliest example of a Condorcet  
system. It
was devised by Ramon Llull in the 13th century and was successfully  
used
for elections in monastaries. It is easily understood by the common  
man

since it resembles a procedure frequently used in child play.


That is an excellent description. Thanks.


Gives a feel for something good enough for their purposes - if there  
is a CW the CW wins.


BUT, if there is a cycle, the best candidate can lose to another cycle  
member - so better make sure the apparent CW gets compared with every  
other candidate.


I've always liked that specific system and think being Condorcet  
compliant

makes great sense in smaller elections or where a perfect choice is
critical.

Implementing it on a large scale seems tough and actually voting in  
it seems
tedious. If there are N candidates am I forced to make N-1  
decisions? If

there is a short circuit way to do the vote then it might be workable.


In voting you could start with thinking who you would approve of.   
Then vote for them, while ignoring the others that you like less.  Do  
any of:

 Approve them by giving them the same rank.
 Vote for the best as in FPTP.
 Rank them to show your preference for better vs lesser.



The improvement over approval still seems marginal, especially in  
large
elections and I think the cost for implementing, tabulating and  
voting is

much higher,


Agreed the implementing costs - mostly in being able to do this.  With  
the ability you get a big help in some elections and less or little in  
others (like 0 when only two candidates).


Tabulating a ballot gets to be labor when a voter ranks many candidates.

Being able to determine winner from the N*N array was an implementing  
cost, but then easy to do via computer (assuming use of an easy  
variant of Condorcet).


Voters who were happy with FPTP will see no benefit - but no cost once  
they see they can vote as they have before.


Voters who have studied range/score will make two groups:  sad to be  
unable to express the exact size of their likes/dislikes; thankful for  
the easier decisions involved here.


Voters who want to rank higher those they like best will be thankful  
to get past approval.


Dave Ketchum



Yours, Jobst




Election-Methods mailing list - see http://electorama.com/em for list info


Re: [EM] Anyone got a good analysis on limitations of approval andrange voting? (long)

2009-11-09 Thread Matthew Welland
Thanks all for the discussion and pointers. I still can't concretely 
conclude anything yet but here are some rambling and random thoughts based 
on what was said and my prior experiences.

Plurality
Leads to two lowest common denominator parties which are not accountable to 
the voters. This conclusion supported by real world observation.
Feels right to the non-critical mind, one man, one vote
Very fast at the polls
Approval
Encourages participation of minor parties and thus should keep the big guys 
paying attention to a wider base.
Almost zero marginal implementation cost. Hanging chads count just fine :)
Understandable by anyone but feels wrong at first not fair, you get more 
than one vote.
Apparently has a terrible flaw but no one seems to be able to articulate it 
in layman terms. No real world experience available to illustrate the 
problem. Here is where I need to learn more. Data provided to date is 
unconvincing to me.
Does not meet the desire of some to be able to differentiate between I 
like, I like a lot etc.  (note: this seems like perfectionism to me. 
Large numbers of  voters and opinions all over the bell curve should make 
individual expression at the greater level of granularity irrelevant.)
Very fast at the polls. Pick yer favorites and head home for beer and telly.
Range
Can break the vicious cycle of plurality
Not voting for someone at all can have a strong influence on election 
outcome. This is very non-intuitive and would take some getting used to. 
Allows for nuanced voting. 
Pain in the ass at the polls (relatively speaking). You can't safely 
disregard the candidates you don't care about so you *have* to assign 
everyone a ranking, possibly addressable by defaulting to zero for all 
candidates? This is considered a feature and I agree it has merit. But in 
reality it is a deal breaker for joe six pack and co. (and for lazy sobs 
like me).
IRV
Demonstrably broken. 'nuff said.
Suite of complicated systems that strive to reach Condorcet ideals. 
No regular bloke would ever trust 'em because you can't explain how they 
work in one or two sentences.
Technically superior to other systems.
Not clear what problem with approval they would solve. Unless you are a 
perfectionist and insist that individuals express nuances of opinion... 
Some time ago I put together a site (primitive and unfinished[i]) to promote 
approval voting and in the process I spent a lot of time trying different 
systems on the web and repeatedly testing my own site. I noticed some 
interesting things from all that playing around.
It was very uncomfortable to go back to plurality after trying other 
systems. It feels unfair and broken.
It was very tedious voting in any of the ranking systems.
Approval felt boring but good. 
I have checked in on this list now and then and I admit I don't have the 
time or skills to follow all the arguments but it strikes me that approval  
voting is good enough to break the deadlock, at least in US politics and 
that it doesn't have any major flaws. The very understandable desire to be 
able to articulate in a finer grained way in your vote is perfectionism. With 
millions of voters, for every person on the fence about a particular 
candidate there will be some to either side who will essentially make or 
break the vote. If you are on the fence, approve or disapprove, it won't 
matter.
So, to re-frame my question. What is the fatal flaw with approval? I'm not 
interested in subtle flaws that result in imperfect results. I'm interested 
in flaws that result in big problems such as those we see with plurality and 
IRV.

[i] www.approvalvote.org


Election-Methods mailing list - see http://electorama.com/em for list info