Tag Archives: via-postie

Energy Budgeting

Both axis are per capita.  The horizontal is log GDP while the vertical is linear energy consumption.  I assume the bubble size is population.

I see two things.  Obviously the US, and some smaller countries, seem pretty inefficient.
More interesting is how much energy this suggests it is going to take to pull India and China up by a factor of 10 to 30.  That ain’t going to happen on current energy flows!
I plucked that chart  here.
An alternate view of the Y axis here.

New Bridge in Town

This is about how prices change when a distribution bottleneck breaks. Do they rise or fall? While generally new ways of getting products to market may cause prices to fall in many cases the exact opposite occurs.

I watched a bit of video of Walter Mosberg sparing with Steve Jobs on the floor following the iPad announcement. One question Walt asked was why anybody would buy a book at $15 bucks from Apple ebook store when they could get it for $10 from Amazon’s. Steve manages to reply that that won’t happen, the prices will be the same. I sensed that Walt didn’t know what Steve was saying.

So, do eBook prices rise or fall as Amazon loses their monopoly on the eBook distribution channel? I think the answer is obvious; i.e. they rise.

It is in the nature of these things that a market maker, like Amazon, with each of their counter parties. If you buy or sell a tremendous amount of services from Amazon it’s worth your while to go chat about prices. The quality of the deal you can strike in that conversation depends on what your options are. The moment that another channel opens up for getting your eBooks to customers Amazon has to renegotiate the deals with major publishers.

Does that raise or lower costs to the book buyer? To first order you might think so. If you think of the distribution channel as a kind bridge between buyers and sellers then what’s going on here that the moment a second bridge opens up the tolls fall on the first bridge in the face of competition. Presumably that lowers the overall cost of goods to deliver a book to the customer.

Lower cost of goods gives up an option to lower the end user price, but in no way does it assure that. But, that metaphor is broken. That’s the physical world with physical goods. These are information goods. The cost of goods was already zero. The only forces that count in this situation are market power between the three actors; the publisher, the distributor, and the buyer. I think we can accept that the buyer has nearly zero power; he’s locked to his device, his store, and to tell you truth he’s so atomized that he can’t actually show up to negotiate. So all that happens here is that the publisher’s negotiation power increases and since he wants higher revenue prices rise.

It’s a bit more subtle then that since the distributor is compensated mostly by the volume of transactions; while the publisher is compensated on the gross dollar value of sales. A shift in the price upward lowers the number of transactions, but as long as it increase the gross that’s fine with the publisher. Of course the author, like the reader, is irrelevant in this discussion.

None of that is new to me. But there is one thing here I hadn’t noticed before. In the story above we are moving from one distribution channel to two; so the power shift is as strong as possible. If we are moving from say five distribution channels to six the power shift can’t be as strong. So, in that case do prices fall? Yes and no. When your check out from your typical online store your offered a pop up to select which shipping company you’d like to use. That pop up isn’t doing what you think it’s doing. That pop up is part of the negotiation. Your selection reveals something about your willingness to pay (the intensity of your desire). You pay for that. So in the usual perverse way of these things the addition of multiple distribution channels becomes a way to raise prices – a tool in the discriminatory pricing games – more than a cost driver.

This is not the market you read about.

I want to draw out something Steve Waldman says in  this interview (I’m really eluding a lot of interesting material here):

You can come up with very clever, fair schemes if you imagine people communicate only within your system. …    I was entranced by the … story of how markets aggregate and communicate widely dispersed information….real  markets differed … Real market institutions seem designed to hide information and shift consequences rather than reveal outcomes and allocate costs and rewards.

Markets do not work the way you think they do.

When those who suffer the delusion double down on the bet, as loyal followers of a philosophy are wont to do they sooner or later echo Margarert Thatcher:  “… you know, there is no such thing as society…”.

Further I hadn’t quite internalized how this widespread delusion is synonymous with the open/closed world question in computer science, on many levels.

Financial Innovation and Feudalism

Mike Konczal  posts on the unwind of the mortgages are awesome!  This posting on  Fake Ownership is particular thought provoking.  It suggests we are headed into a period when a new kind of thing, not owner, not renter will emerge; i might call it a caretaker.  This economic actor doesn’t pay much, maybe nothing, to live in the investor owned real estate, but at the same time he has none of the rights of a renter or an owner.  He’s kind of a squatter.  Some of these pop up because an investor bought a foreclosed property and he just needs somebody to sit in it until the market recovers.  Some pop up because they used be the owner, they stopped paying, so the bank owns the property now – but yeah the bank doesn’t want to let the loss play out and show up on their books.  The banks is caught in a kind of catch 22.  If they foreclose the value of the property sinks even further.  I’m reminded of an comment made early in the crisis about the banks have become incompetent landlords.

The two postings on predatory mortgage servicing are also great.  First on the  social trust aspect and then on the  predatory aspects of the servicing industry.
It is hard reading these for me not to think that deregulating the financial industry has lead directly toward the rediscovery of the social relationships last popular under feudalism.  I wonder if the  condo management companies are going move into this business.  Talk about gated communities!
Meanwhile, back on the walk away issue, this is a very good podcast.  There is a slice in the middle about the ethics and social contract issue.  If you get past the scenarios shown above start to come up.    There are people who have walked, and they can’t get the bank to  repossess  the house and they are stuck paying the taxes and condo fees until they do.  Such people want a pseudo-caretaker too.

Cost Advantage

I don’t like what I just figured out.

Today’s mail included a scary looking letter from my health insurance company demanding that I immediately call about a billing matter. So I called. I typed in numerous long strings of digits (dates, account numbers, event numbers, letter numbers, zipcode) and then spent an hour listening the Blue Danube waltz and numerous alternating assurances that my call was important and that if I pressed one I could leave a message (but that didn’t work). Finally the agent came on the line and, you knew this was coming, had me repeat all those long strings of digits again and a few other facts. Then she asked what my call was about. I read the the letter to her. She then asked what the event was. (i.e. broken arm) She then asked where it happened. (school) And finally if there was any other insurance carrier they who might be involved. (no).

Ok. So what did I figure out? Can you see it?

Their cost for that call was about 12$. So for them they might as well send out the scary letter for every single claim over say 120$. Maybe they can catch the doctor claiming something that didn’t happen, maybe they can catch the chance to shift the cost to another insurance company. My cost. Well that depends on what you think my time is worth. And, feel free to add a bit for my pain and suffering. But they don’t care about that; and the only feed back loop that I might use to reduce this goes all the way to Washington.

This kind of robo-calling is only going to get worse. Most of their cost is the 3 minutes of labor their human agent expended – but really there was no need for a human on their end.

The insurance company will do this for every transaction. The credit card company will do it for every transaction that is the least bit interesting (large, out of town, etc.). The airline will do it on the off chance you might admit your not going to make the plane allowing them to resell the seat. etc. etc. In all these cases the cost for them is so very low and the cost to me … well who cares about that?

Economic Determinism

We all have various theories for what is drives elections.  For example: left v.s. right, race, social issues, economic issues, skilled campaigning, endorsements, slander, self-interest, get-out-the-vote, voter-suppression, candidate height, etc. etc.  In thinking about that it is critical to draw a distinction between what garners votes for a candidate, say his height, and how he votes once elected, say for environmental regulations.

As a practical matter if you want your guy elected it’s important to set aside the issues and focus entirely on the question of what will get him votes.

Let’s say you accept that.  So what do you do?  Well, you go find the literature and experts and extract from them the secret formula.  Wait.  Why would that formula be secret?  Certainly discovering that formula would be a central theme in political science?  So, I don’t think it is a secret.  But as usual it is a bit hard to find the formula in the face of so much noise.  Some of that noise comes from the disputation nature of scientific enquiry; the political scientists are always disputing the question and puzzling out who’s clueful and who’s not is often difficult.  Much of the noise comes from confusing the first distinction – lots and lots of people assume that you get elected because of where you stand on the issues.  Maybe that’s true (the formula would tell us), but I presume it’s not and so all explanations about elections based on issues are just noise.

This formula might look something like this.  P = a*x + b*y +c; where P is the percentage of the vote the incumbent gets.  And the various terms represent the answer to our original question; what are the drivers that garner votes.  Of course there could be dozens of terms, and it could be that the constants, a, b, c; vary substantially from one election and venue to another.  But, maybe not.

One school of thought about what drives elections is that it’s all about the economy.  In that case you give the incumbent some constant c; say 50% of the vote, you then select a measure x, say unemployment, multiply it times a, add them up and you’ve got your prediction.  If this model has high predictive power then you’d better work on x.  Everything else you work on is about issues and policy, it’s not about getting reelected.

Models like that are sometimes called “economic determinism.”  Andrew Gelman wrote a short post on economic determinism back in 2008 providing pointers to the political scientists who have worked on the question.

The first paper (pdf) I read is simple enough.  Bob Erikson fitted a somewhat more complex model P = a*x + b*n + c.  The economic metric x was how much per-person income had changed, weighting the recent past more than the more distant past.

Bob’s model fit his small sample (10 presidential elections) really really well.  He concluded that economic term was very potent.  A 1% change in income drove a 2.7% change in the vote.  But so was second term b*n.

The metric he selected for n is called NCE, or net candidate advantage. That’s based on a voter survey (the  National Election Study)  of how much the voters like/dislike the candidate.

Based on the table in his paper and my calculations on average 12% of the votes the  incumbent  gets are driven by economic issues, 6.2% was driven by the NCE, and only 2.5% was left unexplained.  So 12% is economics and 8.8% is other stuff.  While economics is not entirely deterministic it certainly sets up a powerful current your either swimming with or against.

I’ve not followed any of the other bread crumbs that Andrew tossed out in his posting.  I have some strong doubts about Bob’s model, in particular the last election mentioned is Reagan’s 2nd; and that puts the entire data set before the last three decades of Republican party shift to a highly disciplined far right party.  Further economic growth was largely positive thru that entire period, while since then it’s been flat for voters.

FYI – the US economy is in a recession.  The entire economy is running at about 80% of it’s potential.  You can see that 20% short fall in lots of statistics, labor participation, railroad freight, it’s all over the place.  Not a happy time for incumbents.

Blog Hack – a bit more info.

The security team at my ISP (dreamhost) found yet more infection in my blog.  The appearance of a wordpress blog can vary by installing different themes.  In the directory of one of these themes they found a file containing tool for giving a remote user a shell prompt (there is a version of the script  here).  The theme in question is not a standard wordpress theme; it is a variant I wrote up a while back.  I used it for a while a long time ago.  Which means the URL to access this was obscure.

I only retain logs for a month.  But on Jan 13th  84.3.40.172 pulled it once; notably that visit didn’t include a user agent making me think it was only enqueuing me for futher work.
On the 14th    86.106.170.114 came to visit (his user agent string was “Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5”) and he proceed to:

…php
…php?d=/home/<myusername>/enthusiasm.cozy.org/
…php?d=/home/<myusername>/enthusiasm.cozy.org/&ef=wp-settings.php&edit=1
…php?d=/home/<myusername>/enthusiasm.cozy.org/&ef=wp-settings.php&edit=1
…php?d=/home/<myusername>/enthusiasm.cozy.org/&e=wp-settings.php
…php?d=/home/<myusername>/
…php?d=/home/

I assume that last step was to check if other users on the server might happen to have left their directories unprotected.
My current somewhat baseless guess is that this has been infecting my installation since April of 2008.  So, it is not unlikely that I brought the infection with me when I moved to Dreamhost in Oct 2008.

Postie

I’m inordinately happy to  have finally puzzled out how to enable posting to my blog via email.  The last few times I’d tried to get this to work something or another ruined my fun.

WordPress tempts you into thinking that you can post by email.  But the built in mechanism is flawed in enough ways to make it dead to me.  E.g. –  can only handle simple mail formats, it can only hand unencrypted POP3, and finally didn’t work at all.

But, happy day the  wordpress plugin Postie works for me.

It’s a bit complex to get all the toggles set right.  For example I rarely send email in rich text format, but in this case it’s worth it since the converter will handle all the formating.  Including images.  Floating images!

WordPress tries hard, but the image editing is really too tedious, and its editor is fine; but not as good as the one in my mail program.  And, my mail program there has grammar checking.

Getting all the settings right is delicate.  By default you need to email from the same account you WordPress user id is associated with.  And, you may need to change the email address associated with your admin account for that to work; since I assume it picks the first account it finds.  You will want to check that your blog knows what time zone it’s in, that’s on the general WordPress settings page.  There is also a setting in Postie, but fix the blog’s setting first.  It helped to toggle the “preferred text type” in the postie message settings to “html.”  And you’ll need yet another email account.

Initially I had all the email originated postings filed under “drafts,” and I recommend that until you think you have all the bugs worked out.  But, I’m somewhat sad admit, I still fiddle with the final result by hand.  In particular it isn’t quite getting the paragraph breaks right.

Daily Energy Storage

The drawing at right is the schematic of an air conditioner based on phase change.  In this case wax that melts at 22C (72F).  The wax is encapsulated in tiny spheres and then mixed with water to create a fluid.  That slurry is pumped thru the radiator (labeled: cool-phase condensing rods).

At night cool outside air is used to solidify the wax, and during the day inside air is cooled by melting the wax.  This is analogous to how I cool my house; cooling it at night and sealing it up during the day.  I let the building provide the thermal mass.

They claim you can use it to store heat over night, but I assume that’s only going to work if you warm the house over 72F during the day.  But maybe the slurry is a mixture of wax for different temps.

They can store about 4kWh of energy the slurry.  That’s not a lot as air conditioning loads go (a medium sized room?); but they claim the capital cost per cubic meter and much lower operating costs.

The manufacture is currently testing units around London.  The box looks like a clunky old steam radiator.

So, interesting that a daily cycle, room sized, phase change scheme might show up in the market soon.  There are daily cycle, office building, phase change schemes where in a block of ice is frozen each night.  I’ve thought it would be a hoot to build something similar that was yearly cycle, and house sized.  More here.

Notarized Public Revealing

I don’t really do Facebook, but back when it first emerged I wrote a few apps and kicked the tires a bit.  One application that I admired, but which is sadly now dormant, was “Awareness Ribbons”.  It let you plop a block into your profile with ribbons for all your assorted causes.  They had hundreds of different ribbons.  I find this kind of public revealing of affiliations fascinating.  In particular I found the idea of a middleman being involved interesting.

Anybody can assert that they are concerned about Feral Cats or what ever your ribbon might signal.  The cost of membership is zero, so the quality of the signal is hard to assert.  Around town I see a lot of people sporting the ring they bought late in their senior year at Harvard or MIT.  I sometimes thought it would be fun if I could pick up a few such rings in pawn shops.
In some imaginary future we will have digital documents that we can present to assert membership in various clubs.  These will be signed by the club, making them a bit harder to forge.  Standards for that are, of course, a substitute for a middleman.  Or maybe we will just get a middleman instead; a commercial notary public.
So it was with interest that I notice  something that Tumbler is doing something along these lines.  Tumbler users can make a donation to one of a few charities, and in return they get a ribbon added to their avatar.  It appears you could just upload an avatar to which you have added your own ribbon, but that’s easy to fix.
Clearly the old Facebook app could be reborn with this added feature.  You only get to display the ribbon of your cause after you donate something thru the application.  The middleman could then work with the clubs to set the terms for that.  In fact any of these social sites that aid the public revealing of self could include features along these lines.