Geog 216 Midterm 2 Flashcards
what is demography
study of population characteristics important for considering future peoples needs
what is the demographic equation
r = b-d + i-e
what is the rate of natural increase
RNI = b-d
what is doubling time
time required for a population to double in size (70 divided by RNI)
what is the total fertility rate
average # of children a woman will have in child bearing years (15-44)
what is the replacement fertility rate
of children needed to have to replace ourselves
global number is 2.1
what is the infant mortality rate
of deaths that occur before age 1 for every 1000 live births, most progress in this
what is life expectancy, and what is the global average
of years expected to live at birth, average = 72
what were population drivers pre WW2 versus post WW2
pre ww2: increased food supply & basic living conditions/hygiene
post ww2: public health/medical advances & higher incomes
what is the demographic transition model and name the stages
a model of how the size of a population changes as a countries economy develops
1. pre industrial
2. transitional
3. industrial
4. post industrial
what is a population pyramid
population distribution by age & sex, can show increases, wars, famines, etc
what are pro natal and anti natal policies with examples
to manage fertility rates
pro natal: encourage children e.g. good childcare
anti natal: discourage children e.g. birth control access
decreasing population rates can be ___ or ___ (+ what is the slogan for anti natal)
coercive: one child policies
voluntary: educating women, birth control, etc
–> endogenous to devel process
“later, fewer, longer”
where is the biggest population growth and when is the world supposed to reach a stationary population
and how many ppl are added to the world per minute
in the developing world (asia & africa) and by 2100
158 to world, 90 in devel countries
does labor or capital move more freely
capital moves more freely than labor
who created + define push & pull factors
ravenstein created laws of migration (push & pull)
push factor (involuntary): unemployment, persecution, environmental
pull factors (voluntary): better job/weather
describe the wage differentials graph & what it means (and is it entirely true)
supply & demand curve meet at L or K
difference between L & K between countries is wage gap
migration leads to decrease in country A & increase in country B labor pools = convergence of wages w migration
–> more to do with industrialization
how many migrants are there, how many are worker migrants and how many are refugees
272 million migrants, 164 million migrant workers, 26 million refugees
is intl migration increasing? by what %? and what countries are primary senders / receivers
increasing from 2.5% 1995 to 3.5% 2019
senders: india, mexico, china
receivers: us, germany, saudi
what does the ‘stock of migration’ mean
of ppl in a country who have at one point migrated
what are the migration pathways and the % of migrants they contain
S to N: 40% –> most important
S to S: 33%
N to N: 22%
N to S: 5%
what is a refugee, what are refugee sending/receiving countries, and what pathway do they mainly us
displaced person crossing international border –> conflict is biggest driver
sending: syria, afghan, south sudan, myanmar, congo
receiving: pakistan, turkey, north sudan, uganda, germany
– S to S pathway, 81%
what are the drivers of north south migration REERS
R- return migration
E- economic opportunity
E- expansion of global companies
R- retirement migration
S- student migration
what are the 5 economic consequences of intl migration
- employment: need migrants to fill key job areas
- taxes & revenue: migrants bring money to govt
- brain drain/gain: sending loses educated ppl (haiti) but gains ideas sent back home
- well being: improve financially but not socially
- remittances
how/ from-to who does remittances flow and how big are remittances
remittances- money sent back home by migrant workers
- 4x amount of organized devel assistance
senders: US, UAE, saudi, switzerland, germany
receivers: india, china, mexico, phillipines, egypt
what are internal migrants, and what are the push/pull factors for them
permanent movement within same country (just as many as intl)
push: climate change, internally displaced persons
pull: economic - rural to urban
what is the greatest migration in history
220 million internal immigrants in china from rural to urban –> living costs high so they are going back
what are natural resources
material basis of subsistence & development
- economic, social & cultural concept
robert zimmerman –> resources do not become, they are defined (socially constructed)
what was the case of wild rubber
indigenous used rubber from trees, new world curiosity –> settlers find rubber useful
1839 goodyear vulcanizes rubber, creates demand –> henry whickam took rubber seeds and made plantations in asia –> easily accessible, reserves in amazon exhausted now synthetic rubber exists
what is the resource scarcity/substitution cycle 7 steps
new resource –> demand rises –> easily accessible reserves exhausted –> resource scarcity –> rising prices –> r & d –> substitution created
what are non renewable resources
resources w fixed stock (cant be replaced in human life span)
appropriable (private good)
measured in reserves (3 ways)
e.g. coal
3 ways of measuring reserves
estimate: how much exists in the world in total
proven: how much is available to easily economically exploit
potential: how much is available to exploit if prices rise
–> gold example
what is a renewable resource
can be renewed
usually state or common property
grow or flow –> measured in flux of resource rate
e.g. wood
what is the rate of regeneration
how long it takes renewables to regenerate e.g. little trees to big
whats a sustained yield
using renewable resources at a rate that does not impair or damage ability to be fully renewed on a long term basis
are we running out of resources? –> population bomb
long standing concern since middle ages, different perspectives
population bomb (paul erhlich 1968) suggests rapid population growth will outstrip resource base
what is the club of rome
1972 think tank used computers to simulate population crisis, found we dont have limits to growth, but limits to sustainability
what happened during the oil crisis
1973 oil crisis when OPEC refused to export oil to western countries made people fear resource depletion & prices skyrocketed
who was thomus malthus and what did he believe
1798 wrote malthusian theory
–> population increased exponentially, while food arithmetically
–> not egalitarian, like darwin, we cant all have babies
–> 1970s, neo malthusians
whats karl marxs view on population
malthus is wrong, enough resources, but distribution & access is issue
–> innovation & tech change transcending resource limits
what is the carrying capacity and is it fixed
largest # of a population that the environment can support
–> we can change carrying capacity
what is the ultimate resource
human ingenuity!: tech and innovations can overcome malthus’ issues
optimistic like marx
what was the simon-ehrlich bet
ehrlich bets prices of metal will be higher in the future, simon disagrees
–> simon wins bet price of metal decreases due to ingenuity
how are all three perspectives useful
malthus consider limits
marx considers access
ultimate resource considers importance of tech –> all use dynamic synergy
describe food as a resource
serves our physiological needs and cultural norms
use very narrow spectrum of plants from food world –> high reliance on few cereals
what is path dependency in food
dependence on crop you historically used
north america/europe = wheat
asia = rice
africa = root veggies
why is agriculture important for the global economy? - 5 reasons inele
international trade
national revenue
employment
livelihood
environment
why is agriculture important for international trade and who are the biggest exporters
1.7 trillion dollars from agriculture
8% of world merchandise trade
–> all global food exports r growing, biggest is fruit & vegs
exporters: US, Indonesia, Malaysia, Thailand, France, Brazil
what is canadas national revenue from agriculture
5% of GDP is from agriculture, some countries are more reliant (e.g. Rwanda, 50%)
how much of the worlds employees is employed in agriculture
1/3 of the worlds employees, second largest employment by sector
how does agriculture affect livlihood? reliant on for it for what, how much of canada relies on agriculture for livlihood
many rely on subsistence farming for food/fuel, but they also sell their agriculture
- only 1.9% of canadas pop is in agriculture, not very reliant
whats the environmental impact of agriculture
50% of water usage and 30% of greenhouse gases are from agriculture, also uses lots of land surface
what is subsistence farming
farmers reliant on their crops for basic needs with little surplus for market
low input, low productivity, low output
what is cash cropping
small households doing medium scale farming for personal consumption and the market
–> usually developing world, big producer of exports
what is industrial/commercial farming
large scale, mechanized farming destined for the market
high input, high productivity/output
big greenhouse gas impact
give an example of differences in farmer productivity
amazon: 700 kilos per hector, pray and sow method = low productivity
java: 5000 kilos per hector, highly managed and controlled patty system
what is the role of relative factor endowments
want to economize on scarcest factors of LLK
so canada in praries has land, capital, but less labor –> highly mechanized
peru has land, less capital and labor –> shifting cultivation
java has labor, medium capital, but low land –> terraces
what are the 2 innovations in agriculture and what are traits of innovation
- intensification: increase inputs
- biological: change crops (GMOs)
innovations are relative to factor endowments and endogenous (induced by response to specific issue)
what did esther boserup believe
as population grows agriculture intensifies –> population drives agriculture not other way around (anti malthus)
what are the 4 types of agriculture methods
- shifting cultivation: crop land and abandon until its fertile again
- bush fallow: leave regrowth for less time until u only have to cut down bush
- short term fallow: not leaving forests or rotating fields for regrowth
- permanent cultivation & multicropping: output per hector increases –> farm
what was the green revolution and who is norman borlaug
borlaug created green revolution in 1970s, change crops for productivity
- green rev package= high yielding crop variety, irrigation, fertilizer, pesticides
–> diffused globally, saved lives (india), but threatened rural farmers
–> now expanded to africa
what was the biotech revolution and where did it start
widespread application of bioengineering to increase food production & improve plant/animal strains
–> started 90s US, big GMO increase (st lawrence area)
whats the difference in agriculture growth vs population growth
2.4% increase in agriculture per year, more than 2.1% increase in population –> we are ok
–> increasing resources instead of land is issue now
which countries have increased in agriculture production
north east asia has surpassed north america/europe
south east asia & subsaharan africa have increased very little
russia has declined
what has happened to the price of food over time
price has fallen drastically since 1920s
price spiked in 1970s, and now increasing but still enough food for population –> so question what drives spikes and how we produce food
what is the relationship between energy consumption & GDP
strongly correlated
energy is input, when gdp rises input use rises so energy use rises
energy consumption steadily increasing since 1980s
what does a recession (lower gdp) mean for oil exploration and demand
oil demand and exploration increasing through 2000s but 2008 recession causes oil price to fall, and less rigs/exploration
who has the biggest energy consumption per capita & who are the biggest energy consumers and why
consumption per capita: iceland, canada, norway, us, sweden
energy consumers: iceland, trini, qatar, kuwait, uae, bahrain
–> all have extreme hot or cold climates
what are the inputs & outputs in the global energy system
585 EJs in 448 Ejs out –> 31% energy dissipates in global system
what are the largest and important imputs and outputs of the energy system
inputs: 1. oil, 2. coal, 3. natural gas
outputs: 1. industry, 2. transport, 3. residential