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Review of Tap: Unlocking the Mobile Economy

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Title: Tap: Unlocking the Mobile Economy

Author: Anindya Ghose

Publisher: MIT Press

Copyright: 2017

ISBN13: 978-0-262-03627-6

Length: 240

Price: $29.95

Rating: 100%

I purchased a copy of this book for personal use.

I’m not a reviewer who gives out perfect scores like candy. In fact, I chose to use a 0-to-100% scale so I could provide nuanced ratings. I happily gave Malka Older’s debut novel Infomocracy a 98% because it was outstanding work but, for whatever reason, didn’t ring the bell for 100%. I believe I’ve given one other book, Intellectual Property Strategy (from the MIT Press Essential Knowledge series) a maximum rating. Tap, by Anindya Ghose and also from MIT Press, is the second.

The Mobile Landscape

Mobile devices are everywhere, with their spread continuing to gather pace as the prices of the devices and supporting services come down. Originally limited to voice and Short Message Service (SMS) communication due to a lack of bandwidth, smartphones now enable subscribers to make voice and video calls, search the web, and, of critical importance to marketers, engage in commerce. In Tap, Anindya Ghose of the Stern School of Business at New York University relates the results and implications of numerous academic studies of mobile commerce. The results provide a robust framework for marketers working in the mobile arena.

In his introduction, Ghose identifies four contradictions in what consumers want from mobile marketing and how we behave:

  1. People seek spontaneity, but they are predictable and they value certainty.
  2. People find advertising annoying, but they fear missing out.
  3. People want choice and freedom, but they get overwhelmed.
  4. People protect their privacy, but they increasingly use their personal data as currency. (p. 9)

Success in the mobile arena requires marketers to strike the proper balance among these four tensions.

Studies and References

After reading the first few chapters of Tap, I realized how many studies of mobile commerce have been conducted over the past ten years. As the author points out, tracking user movement and behavior, combined with the ability to test various forms of advertisements depending on context, provides a target-rich environment for academics and industry marketers to experiment. Ghose, who is a lead or co-author on many of the studies he cites, provides useful background on mobile commerce before dividing his coverage of the major forces of mobile marketing into nine chapters:

  • Context
  • Location
  • Time
  • Saliency
  • Crowdedness
  • Trajectory
  • Social Dynamics
  • Weather
  • Tech Mix

Each chapter reviews the literature relating to its force and offers insights into how marketers can use those results to the benefit of their clients and consumers. It’s impossible to cover all of the forces in any detail, but I found the discussion of crowdedness and trajectory particularly interesting. Crowdedness, as the word implies, refers to crowded conditions typically found while commuting. On a subway or bus, commuters typically pay attention to their mobile devices, ear buds in, and tune out their surroundings. Advertisers can take advantage of this focused attention by distributing relevant and interesting advertisements (and advertorials) during those periods.

Trajectory refers to a consumer’s path, either as movement between two major objectives (home and office) or within a larger location (movement within a store). When outside, mobile phones can track user movements based on GPS and accelerometer readings. When inside, the same tracking can be done using wi-fi signals. Each individual’s tendency for future movement based on their current vector can be exploited by marketers to make attractive offers.

The other seven chapters provide similar coverage. In addition to crowdedness and trajectory, I found the chapter on location (Chapter 5) to be particularly interesting.


Marketing is not a one-way street. Consumers are bombarded with ads and advertorial content, raising the mental cost of search and time (and data) spent waiting for ads to load on small-screen mobile devices. Many users employ ad blockers to reduced as much of the clutter as they can, greatly speeding up their usage experience but depriving them of potentially useful information. Also, as Ghose points out in the fourth contradiction listed above, consumers increasingly use their personal data as currency and don’t hesitate to refuse a trade if they feel they’re not receiving sufficient value in return.

Ghose is a leading expert on mobile marketing. His new book Tap summarizes the field’s most important research in a compact, readable package that I believe is indispensable for anyone interested in the subject.

Review of The Chessboard and the Web

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Title: The Chessboard and the Web

Author: Anne-Marie Slaughter

Publisher: Yale University Press

Copyright: 2017

ISBN13: 978-0-300-21564-9

Length: 296

Price: $26.00

Rating: 92%

I purchased a copy of this book for personal use.

The first step to winning a debate is to define the terms used to discuss the issue. In The Chessboard and the Web, Anne-Marie Slaughter, the former director of policy planning for the U.S. Department of State, characterizes international relations as a series of interconnecting relationships. Rather than pursue a statist realpolitik strategy, she argues in favor of a cooperative, supportive approach.

Games in Theory and Practice

Dr. Slaughter starts her argument by comparing the traditional view of competition described by Thomas Schelling’s classic text on game theory, The Strategy of Conflict, with operations on a chess board. Chess is a zero-sum game, meaning that if I win, you must lose. Of the classic two-by-two matrix games that Schelling describes in his book, the game of Chicken comes closest to the risk of nuclear war. In 1950s teen movies, two boys drive at each other at high speed. The first one to swerve is the “chicken” and takes a small loss, but if neither swerves there’s a head-on collision and both players suffer a huge loss.

The Prisoner’s Dilemma, perhaps the best known of the classic games, demonstrates how a games payouts can be constructed to convince individuals to violate their best interests. The idea is that two criminals have been apprehended, separated, and offered a choice. If a criminal testifies against the other (defects) and the other refuses to testify against them (cooperates), the one who testified will go free and the other will go to prison for ten years. If both testify, they will go to jail for five years. If neither testifies, each will go to jail for one year. Even though the best choice for both criminals is to refuse to testify and serve a little time in jail, the fact they can’t communicate with each other means they can’t trust the other’s intentions. The penalty for unmatched cooperation is a long jail term while the other goes free, so the logical choice is for both to defect and accept a suboptimal outcome.

The third game Slaughter mentions, the Stag Hunt (also called the coordination game) allows for scenarios where two players can achieve better outcomes by cooperating than by competing. In the Stag Hunt, two hunters can choose to go after a hare or a stag. If a player goes after a hare, they will always get it and win one point. If both players go after a stag, they will each get three points. If one player chooses hare and the other chooses stag, the player choosing hare gets one point and the player choosing stag gets zero. Even with repeated play, it’s easy for players to fall into the trap of getting a steady payoff of one point per round without discovering that cooperation yields better results. As with all of the classic two-by-two games, the main limitation is the lack of communication between the players.

Networks and Connections

After introducing game theory, Slaughter describes networks and basics of network analysis in the context of international relations. For example, she mentions different measures of connectedness, such as the number of connections leading to and from a network node (its degree), the node’s place in the network (its centrality), and the number of times it serves as a connection between two other nodes (its betweenness). She then explores the strengths and weaknesses of the standard network topologies: star, hub-and-spoke, and mesh. Networks appear throughout international relations, whether among states (such as the European Union) or in non-governmental organizations and terrorist groups. Some networks are tightly interconnected (have a high density), while others are more sparse.

Slaughter describes several major types of international networks, starting with resilience networks. Resilience networks can serve as defense, recovery, and stabilization tools. Doctors Without Borders is one example of a networked organization that provides health care in recovery and stabilization roles. Task networks are similar to resilience networks in some respects, but one distinction is that they are temporary groupings assembled to complete work through cooperation, collaboration, or innovation. Cooperation comes with significant risks. If a partner defects, such as when an OPEC member nation produces more oil than its quota allows, then the strength of the network depends in large part on the effectiveness of punishments administered by other group members.

The final category of networks, scale networks, describe how solutions that work well in microcosm can grow. In a replication network, a solution can be repeated with little or no modification at a new location. One such network is the Global Alliance for Vaccination and Immunization (GAVI). GAVI coordinates transport and delivery of vaccines to vulnerable populations to help restrict the spread of disease. Finally, cumulation networks bring knowledge and expertise into a single entity. One example is GitHub, the online source code repository that programmers around the world rely on.

Network Power

As you might expect, Slaughter argues strongly in favor of a networked approach instead of following the realist’s emphasis on states with interests rather than allies. She cites former Secretary of State Hillary Clinton’s adoption of Joseph Nye and Suzanne Nossel’s concept of “Smart Power”, where states use all means at their disposal, from military power to trade, diplomacy, and foreign aid, to influence allies, institutions, and international norms. At some point the distinction between “smart power” and the traditional realist view becomes moot; realists use all of those tools as well, they just do so with different intentions.

Near the end of The Chessboard and the Web, Slaughter compares her liberal internationalist (she would say humanist) approach to Joshua Ramo’s “Hard Gatekeeping” (statist) approach. As she notes, the discussion has raged between proponents of a power-based foreign policy versus those advocating a values-based foreign policy for centuries. Her ideal scenario is an Open Order where states remain important and powerful but operate within an international network charged with “acknowledging and validating individuals, groups, businesses, and institutions not simply as state subjects but as actors in their own right through global networks.”


Foreign policy, diplomacy, and statecraft require careful planning and execution to advance one’s interests. As with all such debates, it’s a matter of striking a balance between a state’s interests and those of its allies, competitors, and neutrals. Advocates of the Hard Gatekeeping approach would argue that the “Smart Power” approach isn’t so smart because it would leave the U.S. exposed to defectors. Even so, I find Slaughter’s arguments in The Chessboard and the Web to be convincing if not quite compelling. States can benefit from well-applied connections, but deciding on the extent of that connectivity and exposure is a devilishly tricky prospect. Highly recommended.

Curtis Frye is the editor of Technology and Society Book Reviews. He is the author of more than 30 books, including Improspectives, his look at applying the principles of improv comedy to business and life. His list includes more than 20 books for Microsoft Press and O’Reilly Media; he has also created more than 50 online training courses for In addition to his writing, Curt is a keynote speaker and entertainer. You can find more information about him at and follow him as @curtisfrye on Twitter.

That’s Funny…

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When I need to take a few minutes away from work, I’ll jump online for a couple of games of blitz chess (five minutes to make all moves) or play backgammon against my computer. I’ve also started doing logic problems, the kind of puzzle with grids and clues such as “The orange item took 10 minutes less to print than the yellow item.” I’m not great at them, but they do provide some distraction and, as a nerd, I’m happy when I figure one out.

I’m working through the Puzzle Baron series (currently on Book 3) and have noted some of the conventions the editor follows. One of those conventions is that the puzzle’s parameters, such as the color of an object, country, or date can’t provide a contextual clue to the correct answer. As an example, you wouldn’t have a guy named Richmond who turned out to be from Virginia because Richmond is the capitol of Virginia.

When the editor changes a clue to avoid contextual clashes, it can lead to some interesting discontinuities that provide a hint to the correct answer for a clue pair. In this instance, puzzle #7 in Puzzle Baron’s Logic Puzzles: Volume 3 contains just such an edit. The puzzle asks the solver to correctly assign the birthday, name, country of origin, and profession for a set of five passport applicants. The countries are Canada, France, Norway, South Africa, and Sweden, while the birthdays fall on April 13, May 18, June 14, July 16, and August 15. It’s conventional for the days and months to occur in sequence so you can give clues such as “The applicant from Norway was born one month earlier than the applicant from Sweden.” Days are often sequentially numbered as well, but in this case the months were used as levers and the days were not, so the day numbers could be changed if desired.

The oddity that made me say “That’s funny…” is the May 18 date. The other four day numbers are in sequence from 13 to 16, which makes the May 18 date stand out. I have a number of Norwegian friends, so I happen to know that May 17 is Norwegian National Day. Based on that knowledge, I assumed that the applicant from Norway would have the May 18 birthday because, if it had fallen on May 17, there would be external context to guide the solver to the correct answer. Sure enough, that’s how the puzzle worked out.

If the editor changed the date rather than the name of the country to leave an Easter egg for solvers, it’s an excellent gesture that in no way detracted from the fun I had solving the puzzle. If the change was unintentional, it’s a reminder of how seemingly irrelevant changes can make a big difference. It could have been a total accident, of course, but it’s still a cool story.

Do You Just Talk About It or Can You Do It?

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I just finished reading Gravity’s Kiss, a new MIT Press book by Harry Collins. Professor Collins is a Distinguished Professor at the University of Cardiff. In his book, he details the process by which researchers detected and documented the presence of gravitational waves. Collins himself is a sociologist, but he has been part of the gravitational wave community for more than 42 years. He’s picked up the language and understands the principles involved in gravitational wave science quite well, but doesn’t have the knowledge and training required to advance the science himself.

Collins is the head of the Centre for the Study of Knowledge, Expertise, and Science, so he can offer keen insights into his role in the scientific community. Specifically, he distinguishes between interactional expertise and contributory expertise. Interactional expertise, as the name implies, allows individuals to converse with experts in a field using specialized vocabulary and accurate knowledge at a reasonably advanced level. Contributory expertise, by contrast, entails sufficient training and experience to further the study of a field through analysis and experiment. It’s the difference between being able to talk about something intelligently and knowing what to do with that knowledge.

I’m in the iMBA program offered by the University of Illinois, which is an online master of business administration program designed for individuals who want to advance to the senior management and executive levels of industry. In that sense, the iMBA program is similar to an EMBA (Executive MBA) program than a traditional program, which I refer to as a “practitioner” MBA. For me, the difference is that students learn a variety of skills in areas such as finance, economics, organizational structure, and marketing. The goal is to provide us with the knowledge to make strategic decisions about a company’s direction and to understand enough of the basics in our focus areas to interact with subordinates in everyday charge of those functions. In other words, we gain a fair bit of practitioner expertise and a lot of interactional expertise.

As the owner of a small business, this level of interactional expertise translates to having more intelligent conversations with my accountant and investment advisers. On the practical level, my studies will help me make better decisions about the projects I take on. As a speaker and author, however, it means I will be relatively fluent in the language of business and have a credential to back it up. Now when I make contacts with individuals around the business world I will have the knowledge from my MBA, interactions with colleagues from industry, and experience as a business owner to draw on. Properly applied, those resources will serve me very well indeed in the coming years.

Unexpected Rewards

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My first course went live on August 25, 2009. As of this writing, very early in the morning on February 17, 2017, I have 48 courses available with two more recorded and in editing. As I told a good friend last week, I’m a sucker for round numbers and milestones. For whatever reason, odometers hitting the next thousand mile mark, new decades, and reaching the next ten on my writing projects means a lot to me. I figured I’d get a card or maybe a small plaque when I hit 50 live courses on Learning, but I wouldn’t have been upset if it was just my wife and I raising a toast the night number 50 went live.

Late last month, a couple of weeks after course number 48 was released, I received a package from a company I didn’t recognize. The package contained a lovely portable game set with chess pieces that looked like real pieces, checkers, dice, and a pack of playing cards, all enclosed in a good-sized box with a two-sided chess/backgammon board that hinged in the middle and was trimmed with the finest Corinthian leather. The package also contained a card from the LinkedIn Learning crew congratulating me on reaching 50 courses.

No, they hadn’t miscounted. I’d had two other courses published, but one had been retired because the online resource it described changed drastically and the other for a combination of reasons that are both esoteric and boring. Those courses no longer appear on my author page, but they do in the LinkedIn Learning internal database. I was going for 50 live, but the team in Carpinteria cared about 50 total.

Researchers who study motivation make the point that unexpected rewards can have a positive impact on worker satisfaction. I love writing and creating online courses, particularly with the LinkedIn Learning team. Their attention to detail and counting my courses in the most favorable way possible makes their gift that much more special.

Depth of Talent

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One of the undying joys of sports is watching an underdog beat a massive favorite. The U.S. Olympic hockey team beating the USSR in the semi-finals of the 1980 Winter Olympics is one such win, as was the #15 seed University of Richmond basketball team’s win in the first round against my alma mater, the #2 seed Syracuse Orange. Even though those wins were improbable, they came in contests among reasonably well-matched teams. Richmond and Syracuse are both Division I programs, so they could recruit and offer scholarships to elite players.

Few tournaments remain where teams of all levels compete on equal terms. Even the famed Indiana state high school basketball tournament changed to four divisions based on enrollment in 1997. The exception is soccer, or football as it’s called everywhere except  in the U.S. and Canada. Most national organizations hold a tournament where teams of all levels compete. In England, that tournament is the FA (Football Association) Cup. Premier League, League Championship, and League 1 teams get byes through the early rounds, but the lower division sides advance and, on occasion, knock off one of the big boys. It’s unusual for a League 1 or League 2 side to beat a Premier League team, but it does happen.

And then there’s Lincoln. Lincoln plays in the National League, which is, in rank order, below the Premier League, League Championship, League 1, and League 2. According to the New York Times, Lincoln was 81 places below Premier League side Burnley when they played on February 18. No National League team had ever beaten a Premier League side in an FA Cup game until Lincoln pulled it off.

While the win is shocking, it’s doesn’t come against Lincoln’s run of form. They reached the Round of 16 by beating League Championship sides Ipswich and Brighton, so they were clearly playing well. And Burnley is a mid-table club, substantially behind the leaders but well above the cutoff line for relegation to the League Championship. (The bottom three Premier League teams are relegated, while the top two League Championship teams, plus the winner of a playoff between the sides that finished third through sixth, are promoted.) Burnley has the money to attract top-flight foreign talent, while Lincoln fields part-timers who work to supplement their meager football pay.

Upsets of this magnitude make for great stories, but they also point to the depth of talent available to take the field for English sides at all levels of the game. The history of the game, its cultural significance, and the pride that comes from playing well shine through Lincoln’s success. As the saying goes, “England expects.” Lincoln has exceeded those expectations.

Written by curtisfrye

February 24, 2017 at 10:00 am

Review of Driverless from MIT Press

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Title: Driverless

Authors: Hod Lipson and Melba Kurman

Publisher: MIT Press

Copyright: 2016

ISBN13: 978-0-262-03522-4

Length: 328

Price: $29.95

Rating: 94%

I received a promotional copy of this book from the publisher.

Research and development of driverless cars has reached the popular press over the past few years, but until now attempts to frame the debate have remained in the specialty press and academic journals. In Driverless: Intelligent Cars and the Road Ahead, Hod Lipson and Melba Kurman offer a valuable perspective on the technological and policy implications of autonomous vehicles.

Seven Myths

The concept of the driverless car has been around almost as long as the automobile itself, but only in the past few years has the technology underpinning the concept advanced and evolved enough to bring it close to realization. Even so, there is enough disagreement and skepticism to slow the adoption of driverless cars.

Lipson and Kurman organize their narrative around what they call the Seven Delaying Myths that slow advances in driverless car networks:

  1. Autonomous driving technology will evolve out of today’s driver-assist technology
  2. Technological progress is linear
  3. The public is resistant
  4. Driverless cars require extensive investment in infrastructure
  5. Driverless cars represent an ethical dilemma
  6. Driverless cars need to have a nearly perfect driving record to be safe enough
  7. The adoption of driverless cars will be abrupt

I can’t address each point in depth here, but I’ll make a few notes. The second myth, that technological progress is linear, is clearly false. Elementary analyses of networks show that non-linear growth occurs as the number of interconnected members increases. Those connections drive innovation through aggressive idea sharing, competition, and cooperation. The staggering growth of internet technologies and platforms puts this myth to rest easily.

The fourth point, that driverless cars require extensive investment in infrastructure, was true under the completely impractical Electronic Highway paradigm promulgated in the late 1950s and early 1960s. Lane sensors and wires embedded in the road and sensors installed in the cars were prohibitively expensive and required far more computing power than was reasonably available at the time. By 2014, the U.S. government backed research into a paradigm called V2X, where cars exchanged data with other cars, the road, and roadside sensors. Even though the available technologies and processing power were exponentially better than what was available in the 1960s, 1970s, and 1980s, the V2X system used a top-down approach where the system, writ broadly, managed each car’s behavior.

One of the authors attended a 2014 U.S. Department of Transportation conference on autonomous vehicles and was astounded to see just a single session of the multi-day event devoted to Google’s self-driving cars and deep learning algorithms. Disagreeing with the DOT’s top-down approach (noted by including the phrase intelligent cars in the book’s subtitle), the authors believe that putting the smarts and sensors in the cars and using the highway’s infrastructure as a series of checkpoints and information relays is the superior solution. I find their argument persuasive. Advances in deep learning and agent-based models let individual vehicles build their skills, which they can combine with other vehicles’ experiences to develop an ever-improving ensemble model through a process the authors call fleet learning.

The Road Ahead

Driverless vehicles have started to appear on American roads, but significant objections remain. What Lipson and Kurman label as Myth #6, that driverless cars need to have a perfect driving record to be safe enough, poses two problems. The first is that it’s easy for critics to move the goal posts. Whatever safety level driverless cars have attained, it’s easy to use the specter of a runaway or hacked vehicle a passenger has no way to control to argue that the cars must be even safer. Second, humans are horrible drivers. According to World Health Organization figures updated in May 2014, 1.2 million people are killed in car accidents worldwide every year.

And yet, even though driverless cars offer the prospect of safer roads, the loss of privacy and autonomy weighs heavily in the balance. While Myth #3, that the public is resistant, is less true than it was, a significant proporation of Americans identify strongly with their car and see it as a way to maintain their freedom. Leaving the driving to a robot would deprive those individuals of an activity they cherish, which is an attitudinal barrier policy makers can’t ignore.


Driverless is an excellent book that offers a systematic and informative narrative on the history, state of the art, and future of driverless cars. Framing the issues through their Seven Myths offers a lens into the rhetoric supporting innovation and adoption of autonomous vehicles. There is much work to do on both the technological and policy sides—Lipson and Kurman’s work contributes meaningfully to that discussion.

Curtis Frye is the editor of Technology and Society Book Reviews. He is the author of more than 30 books, including Improspectives, his look at applying the principles of improv comedy to business and life. His list includes more than 20 books for Microsoft Press and O’Reilly Media; he has also created more than 50 online training courses for In addition to his writing, Curt is a keynote speaker and entertainer. You can find more information about him at and follow him as @curtisfrye on Twitter.

Written by curtisfrye

February 22, 2017 at 10:00 am