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metainsuranceorg: Abstract out obligation into a class #121

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29 changes: 18 additions & 11 deletions metainsuranceorg.py
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,15 @@ def get_mean_std(x):
variance = sum((val - m) ** 2 for val in x)
return m, np.sqrt(variance / len(x))

class Obligation:
__slots__ = 'amount', 'recipient', 'due_time', 'purpose'

def __init__(self, amount, recipient, due_time, purpose):
self.amount = amount
self.recipient = recipient
self.due_time = due_time
self.purpose = purpose

class MetaInsuranceOrg(GenericAgent):
def init(self, simulation_parameters, agent_parameters):
self.simulation = simulation_parameters['simulation']
Expand Down Expand Up @@ -261,7 +270,7 @@ def dissolve(self, time, record):
self.simulation.return_risks(self.risks_kept)
self.risks_kept = []
self.reinrisks_kept = []
obligation = {"amount": self.cash, "recipient": self.simulation, "due_time": time, "purpose": "Dissolution"}
obligation = Obligation(self.cash, self.simulation, time, "Dissolution")
self.pay(obligation) #This MUST be the last obligation before the dissolution of the firm.
self.excess_capital = 0 #Excess of capital is 0 after bankruptcy or market exit.
self.profits_losses = 0 #Profits and losses are 0 after bankruptcy or market exit.
Expand All @@ -271,13 +280,13 @@ def dissolve(self, time, record):
self.operational = False

def receive_obligation(self, amount, recipient, due_time, purpose):
obligation = {"amount": amount, "recipient": recipient, "due_time": due_time, "purpose": purpose}
obligation = Obligation(amount, recipient, due_time, purpose)
self.obligations.append(obligation)

def effect_payments(self, time):
due = [item for item in self.obligations if item["due_time"]<=time]
self.obligations = [item for item in self.obligations if item["due_time"]>time]
sum_due = sum([item["amount"] for item in due])
due = [item for item in self.obligations if item.due_time <=time]
self.obligations = [item for item in self.obligations if item.due_time >time]
sum_due = sum([item.amount for item in due])
if sum_due > self.cash:
self.obligations += due
self.enter_illiquidity(time)
Expand All @@ -290,14 +299,12 @@ def effect_payments(self, time):


def pay(self, obligation):
amount = obligation["amount"]
recipient = obligation["recipient"]
purpose = obligation["purpose"]
if self.get_operational() and recipient.get_operational():
amount = obligation.amount
if self.get_operational() and obligation.recipient.get_operational():
self.cash -= amount
if purpose is not 'dividend':
if obligation.purpose is not 'dividend':
self.profits_losses -= amount
recipient.receive(amount)
obligation.recipient.receive(amount)

def receive(self, amount):
"""Method to accept cash payments."""
Expand Down