Has Technology Change Slowed?
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Transcript of Has Technology Change Slowed?
A/Prof Jeffrey Funk
Division of Engineering and Technology Management
National University of Singapore
39% admin, 31% salaries, 14% too many tests. Rreasonsfor highercost of US health careSolows quip isnt true. Computers arent evrywher. What if they wereATMs led to morebranches xoz number of employees and thus costs fellPercentage of employees in firms younger than five yearsfell from 19 to 10 percent.betwwen 1982 and 2011Sherwin rosen first explained inequality. Market wants best singer and electronic media amplifies this. Market also want best lawyer but no amplification
Separate freezers came in 1939. Supermarkets in 1930s enabled one payment. In 1980s came barcodesFast foodDishwashers clothes dryers air conConsumer reports concluded little improvement in pice adjusted quality since 1960 for some appliances and since 1970s for othersConstruction costs have risenTen time increase in price of auto betwween 1950 and 2012. 4 time increse in cpi because some quality improvement. All govtmandated changes wer assumed to be improved quality50 percent more drugs were approved between 1940 an 1960 than infollowing 51 yearsSlight increase in cancer survival in last 40 yearsOne interpretation is ovr specialization in doctors hospitals researchersToo much regulationToo much emphasis on science? Identifying mechanisms is more important than devloping curesMore expensive equipment. Medical arms raceUS health care spending is 55 pe rce nt than canada but lifespan is 2.5 years shorter
Lots ofcredit in 1870 for farmers who paid after harvest. But dept storesreduced prices and margins and thus only acceoted cash. COD was eliminated. By 1900hadbegun offering credit to wealthy customers. Auto loans started in 1920.Atuto and life insurace were widelyavailable by 1940. Installment plan, social security became common by 1940
Telegraph enabled single track lines.Also important fornew and dept store inventoryAnnual rate of improvement in life expectancy was twice as fast in first halfthan second of 20th centuryAntibiotics in 1930s and 40sNo horses pasteur indoor plumbing screen doorsLife expectancy from 60increased fastr in 2nd half of 20th centuryIncreases in longevitybefore 1940 came littlefrom doctors and hospitalsReductionds in infectious diseases were achieved by 1955Cleaner water and vaccines are reason in houses and facties, meat processing. Clean milkHospitals became cleaner and safer with antiseptics and pain killers in early 20thBut mos drugs developed after 1940starting with sulfa and penicillinSafe jobs cars railroads machineryWorkers comp
What Does Robert Gordon Argue? Economic growth and thus improvements in standard living
have slowed for the U.S. in the last 70 years
growth between 1870 and 1940
was faster than between 1940 and 2010
He demonstrates this unexpected conclusion by analyzing many studies of
inflation adjusted productivity growth by sector
changes in product and service features, food, homes, and lifestyle, that are not captured in productivity data
changes in longevity and other health data
This analysis suggests technology change was slower between 1940 and 2010 than it was between 1870 and 1940
How Could this Be?
Isn’t there more innovation than ever before?
Aren’t we living in an age of unprecedented technological change?
More is spent on R&D
Supposedly there are more entrepreneurs
More people graduate from universities
Universities place more emphasis on innovation
All of this suggests that Robert Gordon is wrong……
Let’s look at some of his evidence
Simply Put An American of 1870 would not recognize life in 1940
Indoor plumbing
Canned and jarred food, refrigerators
Cable cars, subways, autos, trucks, and aircraft
Electricity, home appliances, and lighting
Newspapers, telephones, records and radio
Urban department stores, skyscrapers
But an American of 1940 would recognize life today Small changes in the above items
Only a few big changes: large screen color televisions, computers, mobile phones, Internet
Similar arguments can probably be made for Europeans, Japanese, Australians, and others
Let’s Compare Price-Adjusted Improvements Category Between 1870 and 1940 Between 1940 and 2010
Power Electricity Small changes
Lighting Incandescent bulbs Small changes
Manufacturing Electric motors and machines Computer-controlled factories
Appliances Washer, dryer, oven, refrigerator Microwave, dryer, dishwasher
Homes and Buildings Indoor plumbing, Elec, Elevators Air con, construction costs rose
Food Cans, mason jars, fridge, cleaner Frozen foods, freezers
Clothing Dept stores, mail-order catalogs Small changes
Intra-City Transport Cable cars, subway, cars Small changes
Inter-City Transport Diesel, electric trains, aircraft Improvements to aircraft
Information Tech. Punch card machines Computers
Communication Newspapers and telephone Mobile phones and Internet
Entertainment Records, radio Large screen color television, cable, Internet
Health Large increase in longevity Smaller increase in longevity
Few Categories Experienced Larger ChangesBetween 1940 and 2010 than 1870 and 1910
Smaller changes
Power, lighting, manufacturing, appliances, homes, food, clothing, intra- and inter-city transport, health
Larger changes
Information technology: Computers improved productivity of most economic sectors
Communications: mobile phones and Internet probably brought more benefits than did telephone and newspapers
Entertainment: large screen color televisions, cable, and Internet probably brought more benefits than did records and radio
Aren’t Better Communications, IT, and Entertainment the Only Things we Need?
These areas had equal if not greater improvements between 1940 and 2010 than between 1870 and 1940
But…….. Do we really need better mobile phones and Internet?
Do we really need faster and cheaper computers?
Do we really need larger screen color televisions, more cable channels, and more Internet sites?
Unless they enable improvements in other aspects of our lives, perhaps not…… How might they improve other aspects of our lives?
Can they reduce cost of electricity, quality of food and water, basic comfort of homes, and effectiveness of transport?
We return to this later
Three Big Questions
How could this have happened?
How could there be a slowdown when there has been more of the following: R&D, entrepreneurship, university graduates and emphasis on innovation in universities?
What types of technological accomplishments would change results?
Each sector is examined
Is the slowdown important?
Can happiness be achieved in other ways?
What about people with low income?
How Could this Have Happened? What caused the slowdown?
Too much of something or not enough? Defense spending? Regulation?
Government subsidies of R&D?
Income or other taxes? Inequality?
Government subsidies of universities?
Or maybe the number of opportunities have really declined? Tyler Cowen, The Great Stagnation, 2011
My research: most technological change is limited to electronics (Exponential Change: What Drives it? California Management Review, Spring 2013; http://www.slideshare.net/Funk98/when-do-new-technologies-become-economically-feasible; Rapid Improvements without Commercial Production, Research Policy, 2015 )
Left and Right will battle over this issue for decades
But academics should begin to question all their assumptions
What About Universities? Universities are expected to develop the science and
technology for next generation products and services
But these products and services don’t seem to be appearing
In spite of large increases in R&D funding for universities over the last 70 years and their massive increases in tuition in the last 20 years
Why aren’t these products and services appearing?
Is it a commercialization problem or a lack of new science and technology problem? latter suggests that new opportunities aren’t emerging
If the latter, what are universities doing wrong? What should they do differently?
Gordon Avoids these Issues
Gordon’s main argument is that growth has slowed
And that it will continue to slow because of many “headwinds” High inequality
Weak education, particularly for low income people
Aging population
Global warming
Higher barriers to entry
Gordon doesn’t argue these headwinds caused the slowdown He argues they will worsen the slowdown
Someone needs to think about the reasons for the slowdown
Three Big Questions
How could this have happened?
How could there be a slowdown with higher R&D, more entrepreneurship, more college graduates and more emphasis on innovation in universities?
What types of accomplishments would change results?
Each sector is examined
Is the slowdown important?
Can happiness be achieved in other ways?
What about people with low income?
What Improvements would Change Results?Category Between 1870 & 1940 What would change results?
Power Electricity Much cheaper and cleaner
Lighting Incandescent bulbs Lower cost and more efficient
Manufacturing Electric motors and machines Lower cost manufacturing and materials
Appliances Washer, dryer, oven, fridge Much cheaper and less bulky
Homes & Bldgs Indoor plumbing, Elec, Elev. Lower cost water, more livable space
Food Cans, jars, fridge, hygiene Lower cost healthy food
Clothing Urban department stores, etc. Lower cost, self-cleaning, require less space
Intra-City Trans. Cable cars, subway, cars Lower cost transport with lower energy usage and emissions
Inter-City Trans. Electric trains Lower cost transport, space travel
Info Technology Punch cards ACHIEVED
Communication Newspapers and telephone ACHIEVED
Entertainment Records, radio ACHIEVED
Health care Big increase in longevity Increased longevity, better health at old age
Many of the Needed Improvements are in Capital Productivity not Labor Productivity
Modern economies have tremendous wealth Land, homes, buildings, transportation equipment and
infrastructure, factories, home appliances, and computers
Improvements in their utilization are needed, as utilizations are often very low
Some of this wealth reflects scarcities Land is the scarcest resource in urban areas, but also water
Not enough livable space inside and outside homes
Too much land is used for “things,” not real living Roads and parking for vehicles
Infrastructure for water, sewage, electricity transmission
Furniture, beds, appliances and clothes in homes
More Details: What Types of Accomplishments would Change Results?
Category Between 1870 & 1940 Examples that might change results
Power Electricity Much cheaper and cleaner electricity; Fusion?
Lighting Incandescent bulbs Smart LEDs
Manufacturing Electric motors and machines Nano-technology, 3D printers
Appliances Washer, dryer, oven, fridge Reconfigurable appliances that need less space
Homes & Bldgs Indoor plumbing, Elec, Elev. More livable space, recycled water
Food Canned food, mason jars, fridge
Lower prices of healthy food
Clothing Urban department stores, etc. Reconfigurable and self-cleaning clothing
Intra-City Trans. Cable cars, subway, cars Lower cost and emissions, higher efficiency, driverless vehicles
Inter-City Trans. Electric trains Lower cost transport, space travel?
Info Technology Punch cards ACHIEVED
Communication Newspapers and telephone ACHIEVED
Entertainment Records, radio ACHIEVED
Health care Big increase in longevity Quality increases in longevity
Power Electricity was introduced in 1880 and
had reached most American homes by 1940
After small reduction in electricity prices in 1940s and 1950s Costs stopped falling in 1960s as
innovation slowed and optimal levels of scale were reached
Environmental controls have subsequently raised costs (and improved environment) And will likely further increase costs
What types of improvements would equal the diffusion of electricity between 1880 and 1940?
How might Cost of Electricity be Significantly Reduced?
What types of improvements would equal diffusion of electricity between 1880 and 1940?
Diffusion of solar, wind, and other clean energy? Cleaner environment, but higher costs
Solar and wind only diffuse with government subsidies
Wireless electricity? This would clean up our living rooms, but it probably won’t
reduce the cost of electricity
How about something more radical? Fusion?
Space-based solar electricity?
Even if they succeed, they might not offer much lower costs
Lighting
Incandescent lighting was introduced in 1880 and its costs had dropped substantially by 1940
Substantially changed homes, offices, and factories
Since 1940
Fluorescent lighting was introduced and improved
LEDs began to diffuse in about 2005
In all very few improvements
What types of improvements would equal the diffusion of incandescent lighting between 1880 and 1940?
What Might Enable Big Improvements in Lighting?
What types of improvements would equal diffusion of incandescent lighting between 1880 and 1940?
Further improvements in efficiency and cost of LEDs?
Which would propel their diffusion
Smart lighting that combines sensors with LEDs
Motion sensors so that lights are only utilized when needed
Other sensors for directional lighting, thus reducing need for entire rooms to be lighted
Together these improvements could reduce cost of lighting and probably its energy usage
Manufacturing
From 1880 to 1940 Diffusion of electricity enabled machines to be
powered by motors; and not by belts and pulleys powered by steam engines
This enabled better organization of machines and people
Interchangeable parts and economies of scale were also introduced, helped by significant improvements in machine tools
From 1940, Computer-controlled manufacturing and
logistics
Computers have enabled lower cost and higher precision manufacturing, along with global supply chains
Will Big Improvements be Achieved? What types of changes would equal diffusion of
electricity and motors between 1870 and 1940? Further improvements in computer controls, including
Internet of Things?
Further improvements in thin film processing for semiconductors, MEMS, bio-electronics, solar cells, displays, and other products?
Nano-technology? Ultra-thin materials such as graphene, carbon nano-tubes, and
others?
Enabling lighter and stronger structures for buildings, transport equipment and other systems?
Some are optimistic, others are not
3D Printers?
Home Appliances Appliances introduced in early 20th century as
electricity diffused and manufacturing improved
But only microwave oven and food mixers introduced after 1940. Consumer Reports concluded “few price adjusted improvements” since 1960s
What types of improvements would equal diffusion of appliances between 1900 and 1940?
Voice controlled appliances, i.e., smart home devices?
Much cheaper appliances that use smart phones for controls instead of embedded electronics?
New appliances like food printers?
Perhaps We Don’t Need More Appliances Appliances take up lots of space
and space is scarcest resource in urban homes
Perhaps configurable or transformable appliances, like the Swiss Army Knife, are what we are need? Think of Transformers movie
Appliances that can do many functions
transform themselves into many different appliances
Electronics can achieve some of these functions, how much?
Can better motors and materials take us the rest of the way? Can the Transformers movie teach us something?
Homes In 1870 most women spent hours each day
carrying water and waste
Infrequent baths, usually in kitchen
Indoor plumbing changed this
What types of improvements would equal importance of indoor plumbing?
Recycling of water at local level (home or neighborhood)
IF it reduces cost of water
But effect will probably be opposite – higher costs
Can smart Homes reduce household work?
Bigger problems are RISING cost of construct-ion and inefficient use of space in homes
How can we create more livable space?
Not Enough Livable Space in Homes
We can have more space by continuing to build up
But this increases the time in elevators
And increases the cost of buildings, past some height
Can we increase the ratio of livable to storage space?
Increase the amount of space available for real living?
Design houses that reduce space occupied by beds, appliances, closets, other things?
Can more flexible homes, appliances, clothing achieve this?
Can we survive with less?
Can we increase the utilization of homes and other buildings?
Many are empty much of the time
Similar Trends in Offices and Buildings From 1880 to 1940, offices and
buildings became higher and cheaper partly from
electric elevators and cheaper steel; this enabled denser cities
experienced rapid diffusion of indoor plumbing, electricity, lighting, and air conditioning
From 1940, computers have revolutionized offices, but
along different dimensions, enabling dramatic improvements in office productivity
further diffusion of air conditioning
Will Big Improvements be Achieved? What types of changes would equal diffusion of
electricity, elevators, and lighting between 1870 and 1940?
LEDs, smart lighting, smart homes? Can they reduce energy usage of buildings?
Greater density of office workers through less paper?
Multi-functional offices that can be used for multiple purposes? Need increases in building utilization
Too many empty buildings; most buildings are only used less than 50 hours a week (< 1/3)
Can restaurants, bars, universities, offices, and other lightly utilized buildings be used for multiple functions?
Food Canned food and mason jars were introduced in
late 1880s and refrigerators in early 20th century
Dramatically improved health through more consumption of vegetables and fruits
Before 1880 scurvy was still problem
Cost of food also dropped as
automation implemented on farms and factories
hybrid seeds, fertilizers, pesticides, and herbicides were used
Since 1940
Greater variety of food in supermarkets (including frozen food) through better supply chains
Additional reductions in cost, but not like 1870 to 1940
What might Enable Big Improvements in Food?
What types of improvements would equal diffusion of canned food, mason jars, and refrigerators between 1880 and 1940?
Internet of Things and automation of farms? Would enable some reduction in costs, but
relatively small impact in U.S. (bigger impact in poor countries)
Vertical farming? Greenhouses with LEDs? Both might reduce cost of logistics and time to market
Food based on genetically modified organisms? Will increase output per acre and reduce need for water,
insecticides, and pesticides; but opposed by many
We need lower priced healthy food, the most basic need of humans, and the most expensive item in budgets of low income people
Clothing
Clothing became cheaper, more comfortable, and more available between 1870 and 1940, partly through urban department stores, mail-order catalogs, and better transportation
People no longer had to make their own clothes
Enabled dramatic increase in leisure time
From 1940, more stores, the Internet, and global supply chains enabled some improvements
Greater variety of clothes has become available
Enabled greater emphasis on aesthetics and fashion
Also some falling costs
Are Big Improvements in Clothing Possible?
What types of changes would equal improvements between 1870 and 1940?
Much cheaper and better clothing through nano-fabrics?
Wearable computing that enables clothing to provide other functions such as health and other monitoring?
Self-cleaning clothing to reduce cost and time of laundering?
Configurable clothing whose shape, patterns, and colors can be changed
Both might reduce amount of clothing needed
This might mean less storage space are needed, and thus an increase in livable space in homes
Intra-City Transportation From about 1900, cable cars, subway, cars
eliminated horses and their problems Allowed people to commute further, live in
suburbs
Eliminated cost of feeding animals and cleaning up their waste (big impact on health)
From 1940, some improvements in cost, but not a lot Safer cars, mostly through better roads and
highways
Electric controls for more convenient cars
Greater fuel efficiency
Cars still represent second highest expense for many people after homes High initial, maintenance and fuel costs
Adverse impact on environment
Can Costs be Significantly Lowered? What types of improvements would equal diffusion of
cable cars, subway, and cars between 1900 and 1940?
Electric vehicles, hydrogen vehicles? these bring higher costs, even if they achieve lower
emissions
EVs are only purchased with very high subsidies
Can we increase number of passengers per vehicle without increasing travel time? Greater user of public transport through better search
tools (smart phone apps)?
Multiple passenger ride sharing that uses low emission, high efficiency driverless vehicles? From better IT?
This can reduce amount of space devoted to roads and parking, thus increasing the amount of livable space
Inter-City Transportation Trains became faster, cheaper, safer, and more
comfortable between 1870 and 1940; aircraft were also available by 1940
Revolutionized inter-city transport for people and freight
Cheaper freight reduced cost of final products, including food
Electric trains replaced diesel trains
From 1940, faster and bigger aircraft but few reductions in cost per passenger mile since 1970
Cheaper leisure travel was achieved because prices rose for business travel
Seats have also become smaller
Can Big Improvements be Achieved?
What types of improvements would equal diffusion of trains and planes between 1870 and 1940?
Supersonic jets? Magnetically Levitating Trains?
Few are optimistic about this
Space travel?
Perhaps for ultra rich
Hyperloop?
Elon Musk is optimistic, and a few others
Even if these technologies succeed, much lower costs than current technologies are needed for the new ones to provide more benefits than were received between 1870 and 1940
What about video conferencing that significantly reduces business travel?
Health Annual rate of improvement in life expectancy was twice
as fast in first half than second half of 20th century
From 1880 to 1940 Longevity increased substantially, primarily through decreases
in infant mortality, accidents, and childhood diseases
Factors: cleaner water and homes, healthier food, more hygienic food processing, cleaner hospitals, trained doctors, penicillin, sulfa drugs, safer occupations
From 1940 Increases in longevity have come through helping elderly people
live longer, albeit not necessarily better
Infant mortality, accidents, and childhood diseases still exists among low-income people in U.S.
Many new drugs and equipment have been developed
Can Longevity be Significantly Increased?
What types of changes would equal improvements in longevity achieved between 1870 and 1940?
New drugs powered by human genome, DNA sequencing, and organ-on-a-chip?
Bio-electronics, wearable computing, fitness trackers? Artificial limbs and organs?
Monitor health for early detection of disease and cancer?
Smart pills, nano-particles, and other techniques for targeted killing of cancer cells?
Can these improvements increase both longevity and quality of life?
offset health problems coming from less exercise and too much eating?
Three Big Questions
How could this have happened?
How could there be a slowdown with higher R&D, more entrepreneurship, more college graduates and more emphasis on innovation in universities?
What types of accomplishments would change results?
Each sector is examined
Is the slowdown important?
Can happiness be achieved in other ways?
What about people with low income?
Maybe a Slowdown Isn’t Important?
Do we really need more?
Can we do with less?
Important things such as homes, food, indoor plumbing, and electricity have been achieved for most Americans
Maybe we don’t need much more? Instead we need
Cleaner air, water and environment
More parks
Slower lifestyle
So a slowdown isn’t important
What About Low Income People?
They face many problems not faced by others
Not enough healthy food
Rising water costs, and sometimes unclean water
Deficient housing
Rising electricity costs
Rising costs of health care and education
In other words, the slowdown matters to some
We need faster growth in order to help low income people
Basic Services aren’t Available to Many Not enough healthy food
requires new forms of food production
Rising water costs, and sometimes unclean water requires new systems of water delivery
Deficient housing requires new forms of housing
Rising electricity costs requires better forms of electricity generation and distribution
Rising costs of health care and education Requires better forms of health care and education
These things aren’t happening to the extent they are needed
Alternatively, a technological revolution in other places can provide higher incomes that enable access to the above necessities
In Summary
The slowdown matters to a lot of people
It’s not just about more gadgets like smart phones, its about livable space, healthy food, clean water,
affordable health care and education, and inexpensive electricity
How can we achieve these things?
Robert Gordon is right, it will not be easy
We need to stop assuming that we are experiencing unprecedented technological change…. the changes are only unprecedented in a few specific
areas like Internet and smart phones
By rejecting this assumption, we can question existing designs and propose better ones