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Tales from Econ Cloud Cuckoo Land

I’ve been called many bad things. Global elitist (or just “telecom elite“) is a popular slight these days for economists and others with advanced degrees. But not until this morning has someone said I commute to “Econ Cloud Cuckoo Land.” That really stings.

Harold Feld’s latest blog characterizes (and mischaracterizes) some of my opinions about the harms from Title II. For example, he neglects to mention that, aside from investment effects, the harm from a bright-line ban on paid priority (secured by Title II) is that certain efficient arrangements between ISPs and content providers might never be struck, and certain real-time applications (in need of higher quality of service) might never come to market.

My head might be above the econ clouds, as Harold suggests, but my feet are firmly planted on solid empirical ground. Let’s take apart some of these zingers, which are set off below in block quotes:

So, after diligently pruning away all investment that “real” economics said doesn’t count, Hal Singer and others found that there had been a measurable drop in carrier investment, which therefore proved that Title II was bad for investment in infrastructure, which therefore proved that Title II was eventually going to cause slowerworsebroadband.

Yes, in reaching my investment figures for 2015 and 2016, I did “prune away” AT&T’s investment in Mexico, as well as its investment made through DIRECTV, both of which (unfortunately) are included in AT&T’s top-line capital expenditures. I have yet to hear a good argument for why these investments should be included in any measure of broadband capital. Recall, we are testing the hypothesis that common-carrier regulations chased investment from the core of the BROADBAND network in THE UNITED STATES OF AMERICA. If an Internet service provider (ISP) moved its investment from broadband to some other sector (say, movie making) or some other country as a result of Title II, we wouldn’t raise a glass of champagne.

The same logic dictates that one “prune away” Sprint’s short-lived investment in wireless handsets. In its financials, Sprint breaks this spending out separately from its network investment. If Sprint did not step in between the customer and handset maker for a nano-second, as it does now, the same amount of money would be spent on Sprint’s handsets. Put differently, Sprint is not increasing aggregate spending in the broadband ecosystem via this accounting measure. And even if you could convince yourself that handset capitalization was really incremental broadband capital (it’s not), Sprint did not embrace this policy until the fourth quarter of 2014. Because 2014 is the benchmark year–against which one compares investment during the Title II regime–one cannot make an apples-to-apples comparison by including Sprint’s handsets. Period.

With respect to causation (Harold’s last point in the block quote), I’ve said repeatedly that comparing 2014 ISP investment levels to those in 2015 or 2016 is not a proof of regulatory impact. Shall I say it again? Other things may have changed during the experiment that affect capital formation in the sector. This is why I like to point to the natural experiment of the late 1990s/early aughts, in which telcos were uniquely subject to Title II, and telco capital formation was outpaced by cable capital formation.

Folks in [Econ Cloud Cuckoo Land] have responded, rather predictably, by saying that if you junk all that real world stuff and use the “real economics” favored in ECCL, you see that Singer does a much better analysis than Turner, so there! This prompts much applause and beatific smiles in Econ Cloud Cuckoo Land.

Doug Brake at ITIF recently compared my investment data to that of Free Press, and determined that the two studies arrive at nearly the same place if one controls for the things I mentioned above (AT&T in Mexico, AT&T via DIRECTV, and Sprint’s handsets). George Ford at the Phoenix Center found that Free Press inappropriately combined 2015-16 data to mask a downturn in 2016 by Free Press’s own accounting. USTelecom replicated my 2016 analysis on a larger database of ISPs (mine was limited to the 12 biggest ISPs) and reached a similar conclusion to mine (a four percent decline in ISP investment in 2016 relative to 2014). And PPI replicated my 2015 analysis and reached a similar conclusion (a modest decline in ISP investment in 2015 relative to 2014).

Do all of these folks commute to Econ Cloud Cuckoo Land? Maybe so. But it’s also possible that Free Press is the outlier. Recall that Free Press famously misled the Commission into believing that Title II caused telco investment to increase in the late 1990s/early aughts, because telco investment increased during the period. (See footnote 1210 of the 2015 Open Internet Order.) Never mind that (1) the dot.com boom coincided with the Title II period, contaminating the experiment, and (2) as noted above, capital accumulation for cable operators outpaced that of telcos during this period, implying that Title II actually retarded telco capital formation.

All of this finally brings us back to the question I expect readers really care about — what does all this mean for Pai’s plan to kill net neutrality? Frankly, it means that the primary pillar Pai points to as supporting roll back is going to be a big fat flop in court if he decides to go that way. Why? You may have heard of a critter called a honey badger who, thanks to this delightful Youtube video, has the tag line: “Honey badger don’t care; he don’t give a f—.” That describes the attitude of judges when reviewing the economic evidence from Econ Cloud Cuckoo Land. Judges don’t care, they don’t give a f—.

I agree with Harold that the D.C. Circuit will not likely care about what happened to broadband investment in response to Title II. To the chagrin of the dissenting opinion from Judge Williams, the D.C. Circuit’s decision approving reclassification by Wheeler’s FCC had zero to do with economics. The court determined that the expert agency was owed deference in these matters. Indeed, when asked about a change in circumstances that would warrant a change in classification, the FCC’s attorney was tongue-tied during oral argument. By symmetry, there is no reason why Pai’s FCC should be (uniquely) compelled to demonstrate a change in circumstances now.

And this is precisely why legislation locking in a light-touch regulatory regime is needed. In its absence, we can count on over-enforcement of net neutrality rules under a Democrat-led FCC, and (potentially) under-enforcement under a Republican-led FCC. (Based on the NPRM, which preserves several options, we don’t know which way Pai is heading. It is a misstatement, however, for Harold to say that Pai’s plan is to “kill net neutrality.”) With luck, even Harold will agree that major reversals in FCC rules every four or eight years is not conducive to attracting capital to the broadband sector.

In the meantime, I encourage Harold to come visit me in Econ Cloud Cuckoo Land. The commute to and from the D.C. suburbs is a breeze. During downtime, we enjoy personal yoga instructors. And when we’ve exhausted our econ brains, we rest our heads on little pillows made from clouds, and snuggle under the 1000 thread-count sheets.

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Why Antitrust Cannot Reach the Part of Net Neutrality That Everyone Is Concerned About

Here’s an excerpt from a new paper on the limits of antitrust, which I will present at the ABA Antitrust in the Americas Conference in Mexico City on June 1. If you are interested in reading the whole submission (a little over 5,000 words), please write me.

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Consider a hypothetical case in which an Internet service provider (ISP) offers preferential treatment for an online content supplier’s packets for a fee, but declines to make the same terms available to other content providers. To make the matter concrete, assume the preferred content supplier offers telemedicine service, a real-time application that performs better with enhanced quality of service from the ISP. Preferential treatment could also take the form of the ISP’s not counting the content provider’s packets against the customer’s data cap (known as “zero rating”). To an economist, the precise nature of the preference afforded the content provider is not critical, so long as preference of some kind is provided for a fee. What matters from a competition perspective is that as a result of the pay-for-preference arrangement, the favored content provider operates at a competitive advantage vis-à-vis its content rivals. Because the offer of preference is, by assumption here, not extended to all comers, the arrangement is discriminatory, plain and simple.

But does it amount to an antitrust offense? This essay answers that question in the negative: Unlike traditional discriminatory-refusal-to-deal (DRTD) cases in antitrust, there is no effort by the ISP in our hypothetical to disadvantage a horizontal rival. Even if an edge provider could structure its net neutrality complaint as a DRTD, private litigants are unlikely to pursue antitrust cases where the only harm to competition is an innovation loss (in the form of less investment/innovation by edge providers in future periods). Moreover, antitrust litigation imposes significant cost on private litigants, and it does not provide timely relief; if the net neutrality concern is a loss to edge innovation, a slow-placed antitrust court is not the right venue. While public enforcement of innovation-based claims is possible, it likely would take an edge provider months if not years to motivate an antitrust agency to bring a case. Finally, competition is not the only value that net neutrality aims to address; end-to-end neutrality or non-discrimination is a principle that many believe is worth protecting on its own.

This essay also offers an alternative, ex post regime patterned loosely from the tribunal used to adjudicate discrimination complaints against cable video operators pursuant to Section 616 of the Cable Act. Like a rule-of-reason case under antitrust, the tribunal would begin with the presumption that preferential arrangements extended by ISPs to edge providers are presumptively not in violation of a (to-be-adopted) non-discrimination standard, but would allow complainants to overturn that presumption upon meeting certain evidentiary criteria. Importantly, the tribunal need not import the evidentiary criteria verbatim from antitrust—for example, there would be no need to establish market power, profit-sacrifice, or anticompetitive effects. Because the gaps in antitrust identified in this essay also fail to restrain search-neutrality violations, there is no reason why the tribunal could not accommodate complaints against dominant Internet intermediaries such as Google and Facebook. In this sense, a new tribunal could provide a layer-neutral approach to dealing with neutrality issues.

Are the Antitrust Laws a Good Fit?

Monopolists are generally free to choose their suppliers and engage in price discrimination under the antitrust laws. Where such constraints exist, the source is often industry-specific regulation. For example, the obligation to deal with rivals or content suppliers on nondiscriminatory terms flows from common-carriage or program-carriage rules under Section 202 of the Communications Act and Section 616 of the Cable Act. As explained by Yoo (2013), telecom regulators ensure nondiscrimination by requiring the telephone company to offer service under the terms specified by a tariff to any requesting party that qualifies to receive the service. Importantly, these nondiscrimination obligations do not flow from the antitrust laws.

Indeed, the recent tendency in antitrust jurisprudence has been to relax nondiscrimination obligations. In Terminal Railroad, the defendant discriminated against rival railroads by refusing to grant access to its terminal facilities. The essential-facilities doctrine, which grew out of that case, has been undermined by more recent developments. In Trinko, the Supreme Court ruled that telephone companies had no antitrust obligation to deal with resellers (horizontal rivals) above and beyond the unbundling obligations in the Telecommunications Act. Trinko cast doubt in the viability of the essential-facilities doctrine, particularly as applied to regulated industries such as telecom and potentially Internet access.

The closest surviving cognizable antitrust offense for our hypothetical case of discrimination by an ISP is a discriminatory refusal to deal (“DRTD”). For example, a dominant firm may discriminate by refusing to deal with—or offering worse terms to—horizontal rivals or those buyers (or suppliers) who deal with horizontal rivals. In Aspen, the defendants discriminated against rivals by refusing to sell lift tickets to its rival at any price. In Otter Tail, the defendant discriminated against rivals by refusing to supply electric power to those municipalities that competed with the defendant in retail distribution. In Dentsply, the defendant discriminated against rivals (indirectly) by using exclusive contracts with dental-product dealers to limit rival manufacturers’ access to dental laboratories that purchase artificial teeth. And in Lorain Journal, the defendant discriminated against rivals (indirectly) by refusing to sell advertising space to those advertisers who dealt with its rival. Based on a review of these and other seminal DRTD cases, Elhauge (2003) explains that a duty to deal turns not on a prior course of dealings with the buyer or distributor, but instead on whether the dominant firm’s present dealings discriminate between rivals and non-rivals; in particular, whether the dominant firm deals only with non-rivals and excludes rivals. And even then, to prevail under the antitrust laws, the plaintiff would still need to demonstrate that the DRTD enhanced or maintained defendant’s monopoly power and harmed competition. Kulick (2013) develops an alternative post-Chicago model of exclusive dealing where exclusive dealing takes the form of a DRTD.

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A Quick Note on Omitted Variable Bias

Here’s an excerpt from an introduction-to-econometrics paper written for lawyers, which I will present at the ABA Antitrust Spring meeting in DC in late March. If you are interested in reading the whole submission (a little over 4,000 words), please write me.

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Well, if that’s all regression does, you might ask, why in the heck do we need it? The answer is that many factors in addition to the challenged conduct likely affect prices in this market, and we need to control for those factors in case they changed around the time that the challenged conduct ended. Prices are typically determined as a markup over the cost of serving the customer. Suppose the seller (the defendant) in this case always imposes a markup of 50 percent over costs; in the during period, average costs were $667 and average prices were $1,000. Suppose further that costs on average declined in the after period relative to the before period by $100, bringing average costs to $567 and average prices to $850 (equal to $567 plus 0.5 x $567). We now have an independent reason—unrelated in any way to the challenged conduct—for why prices would have declined in the after period!

Suppose the analyst is unaware that costs had changed or that cost data are not available. He regresses the simple model from equation [1]. The estimated parameter on the conduct indicator comes back at $250, but we know that the parameter is biased. Technically, this means the expected value of the parameter in repeated samples will not be equal to the true value. The regression is attributing too much of the change in prices between the during and the after period to the challenged conduct. This problem is referred to in the econometrics literature as “omitted variable bias,” and it represents a major challenge for applied economists.

Here’s why: Remember that assumption on the error term in equation [1]? It required that the error term was not correlated with the conduct indicator. By omitting cost from the regression, however, we violated it. In particular, we know that costs declined remarkably right around the time that the conduct ended; hence, when the conduct was absent (present), costs were lower (higher). Without controlling for costs, B will now capture the sum of the direct effect of the conduct on prices (what we want) plus the indirect effect of the conduct on costs, which in this case is positive. So when we omit costs from the regression, our predictions of prices based on equation [1] will be worse in the presence of the conduct—that is, the error term is now correlated with the conduct indicator. In general, whenever the omitted variable (in this case, cost) is positively correlated with both the included regressor (the conduct) and the dependent variable (the price), the estimate of the included variable’s coefficient will be upwardly biased. Because this rule is hard to memorize, I’ve presented a simple table for reference below.

Correlation between omitted variable and included regressor Correlation between omitted variable and dependent variable Direction of Bias on Included Regressor
Positive Positive Upward
Negative Positive Downward
Positive Negative Downward

It bears noting that most if not all regressions ever estimated have omitted at least some explanatory variables from the equation (otherwise, there would be no error term, and the R-squared would be 100 percent). But that does not imply that the resulting parameters of the imperfect model were biased. Two conditions must be present for an omitted variable to result in a biased regression estimate: (1) the omitted variable must be a factor that explains the dependent variable; and (2) the omitted variable must be correlated with an independent variable specified in the regression. The second condition is a generalization of the phenomenon we just encountered with costs and the challenged conduct. This means that it is not sufficient for an opposing economist to merely point out that a regression is missing a key variable. For the critique to be valid, the opposing economist must demonstrate that both conditions are satisfied. One way to do this is indirectly, by providing an evidentiary basis that the allegedly omitted variable is a factor in defendant’s pricing, and that it is correlated with the conduct variable. Alternatively, the opposing economist can demonstrate omitted-variable bias directly by re-running the regression with the omitted variable included, and showing that not only does it belong in the regression (as evidenced by a statistically and economically significant effect), but also that the revised estimate of the conduct parameter is no longer statistically or economically significant or of the expected sign.

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Non-Discrimination Rules for the Internet

There is a lot to chew on in Kevin Werbach’s new piece on the FCC’s role in shaping the Internet. But one passage caught my attention:

The FCC’s first actions on the issue came under two Bush-era chairmen, but most Republicans have always been skeptical of the need for formal broadband non-discrimination rules. Ironically, that now puts them out of step with the industry. Though still opposing classification as a regulated common carrier and some of the FCC’s specific requirements, virtually every major broadband operator is on record endorsing what would have been considered strong net neutrality rules in 2004 or even 2008.

So if Republicans need prodding, let’s prod them. Here is the compromise I’m peddling:

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Wish me luck.

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2016 Broadband Capex Survey: Tracking Investment in the Title II Era

Here are the results of my 2016 domestic broadband capex survey.

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I’ll have a lot more to say, but here are some of the key takeaways:

(1) Of the twelve firms in the survey, eight experienced a decline in domestic broadband capex relative to 2014—the last year in which ISPs were not subject to common carrier regulations. Across all twelve firms, domestic broadband capex declined by $3.6 billion, a 5.6 percent decline relative to 2014 levels.

(2) The biggest drops occurred at AT&T (down $3.4 billion or 16.2 percent relative to 2014 levels) and at Sprint (down $2.4 billion or 62.7 percent relative to 2014 levels). When measuring the impact of Title II on AT&T’s domestic broadband investment, it is important to remove AT&T’s investment in DirecTV and its investment in Mexican cellular properties. A detailed explanation is provided here. Similarly, when measuring the impact of Title II on Sprint’s domestic broadband investment, it is important to ignore Sprint’s capitalization of handsets, an accounting change that occurred in the middle of the experiment. Fortunately, Sprint breaks out these “investments” separately from network investment.

(3) The biggest gains occurred at Comcast (up $1.2 billion or 19.2 percent relative to 2014 levels) and at Charter (up $884 million or 39.8 percent relative to 2014 levels). The Comcast figure excludes investment in NBCU properties (again, the hypothesis is that common carriage regulation undermines investment at the core of the network). The Charter figure requires a decomposition of the aggregated data in Charter’s pro forma, which assumes (counterfactually) that the three companies (Charter, BrightHouse, Time Warner Cable) were a single unit as of January 2015. Some analysts have argued that, by foreclosing ISPs from employing certain arrangements with edge providers, the rules cemented the status quo market structure, thereby assisting (in relative terms) dominant cable operators.

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Repealing the FCC’s New Privacy Rules Will Not Leave a Gap in Consumer Protection

The new Congress is reportedly considering repealing the privacy rules that Tom Wheeler’s Federal Communications Commission (FCC) put in place right before the presidential election. Proponents of the new rules are engaged in a furious public-relations campaign, claiming that consumers’ privacy will be violated left and right if the new rules are repealed. Frightening if true.

When it comes to using your data from web browsing and app usage, the Federal Trade Commission (FTC) has been the regulatory cop on the beat. Determined to be relevant in the digital economy, the FCC created its own, radically different set of privacy regulations targeting just Internet Service Providers (ISPs). By requiring an ISP’s customers to give permission for their data to be used, the FCC’s new privacy rules subject ISPs to a different and more restrictive set of regulations than their online advertising rivals.

The difference in the rules—“opt in” rules for ISPs versus “opt out” rules for edge providers—has significant competitive implications in the online advertising market, which is dominated by Google and Facebook. The reason is that consumers typically elect the default choice out of laziness and respect for the status quo. By making it relatively easier for edge providers to access consumers’ data, the FCC has perversely impaired the ability of ISPs to compete for online advertisers.

Not what you’d expect from an FCC Chairman who liked to chant “competition, competition, competition” as his raison d’etre.

Google and its minions are understandably upset that Congress might upend this regulatory arbitrage, and they have come out swinging. A February 20 blog post by the Electronic Frontier Foundation (EFF) in defense of the FCC’s rules begins with a breathtaking subtitle: “Cable and telephone companies are pushing Congress to make it illegal for the federal government to protect online consumer privacy.” The hyperbole doesn’t end there. EFF claims not once but twice that Congress “intends to eviscerate consumer privacy laws.”

Please. Even if the FCC’s new privacy rules are repealed, there are myriad layers of federal and state protection for consumers. None is mentioned in EFF’s blog.

Where to begin? At the federal level, the FCC has authority under section 222 of the Communications Act to prevent privacy abuses by telephone providers. Section 222 was originally designed to prevent traditional telephone companies from giving their wireless subsidiaries an unfair advantage over unaffiliated wireless companies by sharing customer information with them.

Even EFF admits that “Long ago, Congress made privacy a legal right, so that your telephone company was prohibited from using its position as your communications provider to exploit your personal information.” In case there is any doubt of the law’s relevancy in the Internet age, in 2015, the FCC’s Enforcement Bureau issued an advisory that made clear that even in absence of new privacy rules, the FCC will enforce section 222 against broadband providers.

Not content with section 222? Repeal of the FCC’s new privacy rules will not prevent the FCC from establishing a different privacy regime going forward. For example, in the name of regulatory symmetry, the new FCC could replicate the same opt-out standard used by the FTC.

Perhaps anticipating this rejoinder, EFF claims without citation to any case law or precedent that the mechanism being considered by Congress to repeal the FCC’s privacy rules “could possibly bar the FCC from enacting future consumer privacy rules even if they are more industry friendly.” Adding “possibly” after “could” seems redundant, unless there is simply no basis for making such a claim. (I’m anxious to be corrected.)

Moreover, repeal of the FCC’s privacy rules will not prevent Congress from establishing a different privacy regime going forward. To the extent that Congress repeals both the FCC’s 2015 Open Internet Order and its privacy rules, the FTC would be placed firmly back in control of privacy enforcement for ISPs. Before the FCC’s reclassification of ISPs as common carriers in March 2015 took away the FTC’s authority, the FTC was the primary privacy cop on the beat for ISPs. For example, in 2014, the FTC sanctioned AT&T Mobility for its alleged failure to adequately inform its customers of its data-throttling program.

EFF argues that a recent Ninth Circuit decision stripped the FTC of its “authority to penalize cable and telephone companies if they deceive their customers, meaning the FCC is the only broadband consumer protection agency.” But Congress could eliminate the FTC’s common-carrier exception, assuming the GOP majority could convince eight Democratic Senators to overcome the filibuster rule. This would also return privacy enforcement to the FTC.

Moving beyond federal protections, several states add yet another layer of protection against potential privacy abuses by ISPs. For example, Nevada and Minnesota require ISPs to keep private certain information concerning their customers, unless the customer gives permission to disclose the information. And under California law, non-financial businesses, including ISPs, are required to disclose to customers, in writing or by electronic mail, the types of personal information sold to a third party for direct marketing purposes.

If and when the FCC’s new privacy rules are overruled, the statute that empowers the FCC to police privacy abuses by ISPs will still apply. And nothing prevents the FCC from designing a different (and more symmetric) regulatory standard. Repeal of the FCC’s new rules will simply restore the regulatory environment that existed for more than 18 months between the FCC’s reclassification decision and its privacy rules. Given the myriad layers of protections and regulatory options, the notion that repeal would leave the ISPs without any privacy regulator is patently false.

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Tracing AT&T’s Capital Expenditures Over Time

When it comes to broadband investment, AT&T is the largest Internet service provider (ISP) in the United States. So when AT&T redirects capital expenditures (capex) away from its domestic broadband operations, the whole ISP segment moves with it. This is key because policymakers are trying to figure out what happened to ISP capex since the FCC reclassified ISPs as common carriers in February 2015.

Try as Tom Wheeler might to obfuscate the facts, the relevant benchmark for comparison is 2014–the last full year in which ISPs were not subjected to common carrier regulations. In his farewell speech, Wheeler intimated that 2013 (his first year as Chairman) was the benchmark year against which any such comparisons should be made. Convenient, but wrong, as 2014 is a better predictor (relative to 2013) of 2015 and 2016 ISP investment in a world absent reclassification.

If you look at the top-line capex figures from AT&T from 2014 through 2016, it appears that capex increased (albeit slightly) from 2014 to 2016: $21.2 billion in 2014, $19.2 billion in 2015, and $21.5 billion in 2016. Title II is wonderful, right?

Wrong. There’s a problem in this comparison, and it’s similar to the one that complicates inferences about the impact of Title II on Comcast’s broadband investments. Recall that Comcast acquired NBCU, a content provider, and the deal was approved by regulators in early 2011. Fortunately, Comcast breaks out its annual capex relating to NBCU from its capex in infrastructure in its annual reports.

In the middle of 2015, AT&T acquired DIRECTV and some Mexican cellular properties. Unlike Comcast, however, AT&T does not break out capex related to these investments. To make an apples-to-apples comparison of AT&T domestic broadband capex from 2014-16, one must back out AT&T’s capex in satellite and in Mexico in 2015 and 2016. In particular, one must back out a half year of those investments in 2015, and a full year in 2016. The approximate annual capex over the last few years were $3 billion for DIRECTV and $750 million for its Mexico operations (equal to $3 billion spread over four years).

Accordingly, the best estimate for AT&T’s domestic broadband capex in 2015 is $19.2 billion (the top-line figure reported in its annual report) less $375 million in Mexico less $1.5 billion in DIRECTV, or $17.3 billion. And the best estimate for AT&T’s domestic broadband capex in 2016 is $21.5 billion (the top-line figure reported in its annual report) less $750 million in Mexico less $3.0 billion in DIRECTV, or $17.8 billion.

Relative to 2014, AT&T’s domestic broadband capex in 2015 declined by 18.2 percent ($17.3 billion versus $21.2 billion). And again relative to 2014, AT&T domestic broadband capex in 2016 declined by 16.2 percent ($17.8 billion versus $21.2 billion). Put differently, the imposition of Title II is associated with (but did not necessarily cause) an annual reduction of over $3 billion in capital in the broadband sector in each of the last two years. That’s a lot of capital to go missing.

This is not a legacy anyone should be proud of. I’ll be back with my full survey of the top 12 ISPs shortly. Stay tuned.

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Since posting the piece, Alex Byers of Politico asked me via Twitter about the impact of Project VIP on AT&T’s capex, which ended in 2014. It’s true that VIP caused a boost in capex. But AT&T’s guidance to investors in November 2012 was that capex would return to normal, “pre-VIP levels.” AT&T’s average capex from 2010-12 was $20.5 billion, which vastly exceeds the $17.3 to $17.8 billion range estimated above.

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