[Music]

hello everyone so in this unit we're

gonna try to take everything we've

learned about netlogo and agent-based

modeling and agents and we're gonna try

to put it together to create our first

model from scratch from the ground up

right and I'm gonna be giving you a lot

of code and explanations along the way

but hopefully leading you through the

hand its leading you by the hand so you

can see how this all works together and

then this start with some inspiration

you know and then 1996 Josh Epstein

arrived Extell published won the first

definitive books on agent-based modeling

is social science called growing

artificial societies which was populated

by artificial economic agents and others

through their basic model which was

sometimes referred to a sugar scape

right was really kind of had these

agents in them that interacting economic

ways right and that was one of the first

examples and that really inspired a lot

of work into using agent-based modeling

to explore how economies work in how

societies work so we're going to create

a simple model of economic agents

inspired in part by experts in acts

those work and the paper by draging

Lascaux and yoko Benko in 2000 and the

basic idea is the following right we're

gonna create a 500 agents that start off

$100 each and every tick each person

gives one down there to another person

randomly the idea is that this somehow

models the exchange economy right did I

give you a dollar for an apple you might

give me a dollar for my teaching right

whatever right and if you run out of

money at the end you can't give any more

money until someone gives you money you

can't give me more money away so you

can't buy anything if you have no money

it's the basic idea so given the fact

that we start with this uniform

distribution the question that

journalists doing activate go in others

fast right is what will the final

distribution of wealth be in this very

very simple economy right so we're gonna

explore that in the next couple of

slides