Yet even if Lord Layard's theory is right, his figure for the optimal tax rate looks like little more than convenient guesswork.
Over the past five years, Agassi has pioneered an innovative technology solution aimed at making electric cars more affordable and more convenient than gasoline cars.
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But the helicopter story was more than a convenient simplification, it represented a critical assumption without which the argument no longer makes sense.
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Rather, privatisation became little more than a convenient mechanism for raising large sums of cash without giving up control of the companies concerned.
Major websites such as Expedia, Orbitz and TripAdvisor popularised digital reviews and made online booking cheaper, more up-to-date and more convenient than guidebooks.
Even rich customers may find that more convenient than queuing to pay their telephone bill.
That said, sticking to your in-plan funds is usually cheaper and more convenient than investing through a window.
Operating the LSM-100's scanning function is far more convenient than on conventional scanners.
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If you want to act now while operators are standing by, what could be more convenient than a TV wallet?
Utilizing a smartphone was more convenient than a laptop or netbook.
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WiDi makes wireless screen sharing with laptops more convenient than ever and with DLNA and Wi-Fi Direct, content stored on smart devices can easily be accessed and shared.
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That capability makes them considerably more convenient than conventional cameras.
Their concept is vastly more convenient than commercial airline travel with all its waits and security lines, yet a lot less expensive than chartered jets or executive jet ownership.
Softtek positions itself as the "near-shore" answer to India's offshore information-technology service providers, more convenient than India because Mexico is within U.S. time zones and is a much shorter flight than to India.
Consumers still use DVDs today, but in fewer and fewer homes because streaming by Amazon, Comcast, Hulu and Netflix is faster, cheaper and more convenient than going out to buy or rent a disc.
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The global-ready MiFi Liberate also offers connectivity in more than 200 countries, making it more convenient and affordable to browse the Internet, check and send email, and upload photos while abroad.
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Amgen has begun a massive final-stage trial program on over 9, 000 patients aiming to show that AMG-162 is more powerful and convenient than existing osteoporosis drugs.
Barclays has made about 5, 000 traditional bicycles available at hundreds of docking stations throughout the city, which makes it a more convenient option than Hertz's mere dozen e-bikes at a single location.
This means that there is a lot of nonconsumption in the tutoring space to launch disruptive innovations that utilize the power of machine tutoring at a much lower price point in a manner far more accessible and convenient than are human tutors to millions or even billions around the world.
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Apps have stolen some thunder from browsers, especially as consumers find apps faster and more convenient to use than the Web.
But there is a major problem with this approach: browser-based mobile apps are more convenient for developers than they are for users.
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That would be more convenient for patients than Fosamax's once weekly regimen.
But electronic cash, like paper cash, can be anonymous, untraceable and a good deal more convenient for money launderers than lugging a suitcase stuffed with notes around the world.
Abbott (nyse: ABT - news - people ) is betting that Humira can make inroads by being more convenient and perhaps safer than these other drugs.
That provides a green-field opportunity to introduce disruptive innovations that rethink education by offering a service that is far more affordable, accessible, and convenient than the existing options.
And if you're also storing big items like lawn mowers, ladders, bicycles and garbage cans, a garage is far more convenient in terms of access than a storage room, even if the builder happened to put in French or patio doors where the garage doors normally are.
Gold coins are often minted in smaller sizes (one ounce or less), making them a more convenient way to invest in gold than the larger bars.
People who want to dock their phones and play music out of external speakers or charge their phones while playing music will likely find it more convenient to gesture to their phones than sit right by the devices and key in commands, said Goren.
In fact, with the technologies described above, it is becoming possible to offer customers a more convenient, personalized and affordable shopping experience than ever before.
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The Galaxy S4 is certainly a more convenient web browsing and video-watching device than the iPhone 5.
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