ch 22 terms Flashcards
define asymmetric info
one party better informed than the other
impacts demand and supply
define agent
someone who performs task for another
define principal
i hire someone else to do stuff
define median voter curve
if left party is further away from middle than right is, median voters will vote for closer to their beliefs
define hidden action
i do something that you are not aware of
(slacking during work)
define hidden characteristic
one knows more than the other about good being sold
define moral hazard
risk of bad action taken by agent without principal supervising
define principal-agent problem
employer and employer have misaligned incentives
how can principal combat principal-agent problem
more monitoring
efficiency wage
delayed payment - year end bonus
define adverse selection
buyer and seller don’t have same info
define signalling
informed party credibly reveals private info
ex. ads, education
what must occur for signalling to be a effective
must be less costly for party with higher quality product
define screening
uninformed party induces informed party to reveal private info
define condorcet voting paradox
democratic outcomes between 3 options do not always obey transitivity
define transitivity
if A>B
B>C
A should > C
arrows 4 desirable voting system properties
unanimity
transitivity
independance of irrelevant alternatives
no dictators
define unanimity
unanimous
define independence of irrelevant alternatives
choice between two should not be affected by addition or removal of a third irrelevant
examples of adverse selection
used car market
life insurance
arrows impossibility theorem
no voting system satisfies all four properties
define median voter theorem
math shows that majority rule will pick outcome most preferred by median voter
why does median voter win
it’s the less extreme option on the political spectrum
very few are extremeists
define behavioural economics
new field of economics using psych principals
sees that consumers aren’t that rational
define satisfacer
someone who will accept good enough rather than going all the way to optimal
define
people are inconsistent over time
ppl prefer instant gratification to long term saving
define consumer intertia
consumer will pick same choice over time even if better option exists
prefer old habit