Tuesday, November 06, 2018

Why Mr. Coppock Really Doesn’t Use Venmo: A Comprehensive Economic Examination/Roast


During our break in class this week, in response to Billy’s request to pay his auction debt immediately, Mr. Coppock proudly professed his unwillingness to use Venmo. To paraphrase, he said “as soon as any app asks for my bank account information, I’m out”. I was confused by this: why did an economics professor with little to no cybersecurity experience (a result of rational ignorance, of course) refuse to recognize the expertise of a digital financial services company owned by PayPal, which accounts for nearly two thirds of the online payment services market? Quite frankly, I don’t buy it: whether or not he knows it, Mr. Coppock is making a rational choice.

Perhaps, I thought, Mr. Coppock’s ignorance of mobile wallet technology was such that the only information in the space that was worth his time beyond basic name recognition was in learning about data breaches. After all, being able to discuss current events carries additional utility beyond the intrinsic value of understanding cybersecurity, so it would be rational for him to at least scan headlines whenever a major retailer’s database was hacked. Thus it is plausible that Mr. Coppock’s fear is a result of a high level of rational ignorance combined with a high proportion of fear-inducing information.

However, that explanation did not satisfy me; Mr. Coppock was simply too excited in his response, almost as if he were happy to share that he didn’t trust our silly digital wallets. He spoke like he wore a badge of honor, or… an “I Voted” sticker. With that realization, it became clear that I could apply the individual voter choice model to this decision making process.

Like a voter deciding whether to hit the polls, or a consumer purchasing a good, Mr. Coppock would use Venmo if the marginal benefits exceeded the marginal costs. However, there are some adjustments to be made to the original model.

E[MB] + D > MC
p|V1-V2|= E[MB]

 We recall in the original voter choice model, our marginal benefit was the probability our vote swayed the election times the benefit we would receive if our chosen candidate won the election. We concluded that E[MB] and MC were insignificant, and that the real reason people vote is D, the expressive and instrumental values of having voted. Now, to explain why Mr. Coppock does not use Venmo, we simply switch MC and MB:

E[MC] + D > MB
p|Coppock’s Bank Balance|= E[MC]

Now, MB is the utility gained from using Venmo, mostly from enhanced collection ability in all-pay auctions conducted in public choice classes. MC is the amount Mr. Coppock stands to lose if hackers break into Venmo’s encrypted databases and empty his bank account, and p is the probability that A. the hackers overcome Venmo’s security measures, B. that they take his money, and C. that it is impossible for him to recover it through his own legal action or Venmo’s corporate response. As an aside, I would also expect that a breach of this magnitude would prompt a response from major banks themselves, enacting fraud protection measures and further decreasing the probability that one would lose any money from a breach. Now, it could be argued that there are lesser consequences that are still irritating such as having to change passwords, but the expected cost of those is arguably insignificant even with a higher probability of being incurred.

So, this leads us to D: the expressive utility of not using Venmo, which acts as a cost because it would be lost were Mr. Coppock to finally give in and make a Venmo account. By refusing to adopt new technology, Mr. Coppock is able to hold himself above us careless millennials, and take pride in his own supposed financial security. 


P.S.
Interestingly, even by writing this blog post, I have increased D in Mr. Coppock’s equation: now, if he adopts Venmo, he will face additional social costs by bearing the shame of being wrong and proving me right. Therefore, I predict he will find some more evidence and form a stronger argument against Venmo’s security, increasing his expressive utility by doubling down on his earlier point. In this way, I have decreased his rational ignorance by questioning his knowledge and reasoning on the topic and creating incentives for him to spend more time learning about it.

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