The IPSS is a simulation tool to test different interbank payment systems
configurations, including RTGS, DNS and Hybrid systems, using agents. The simulator allows the user to compare the
effects on costs, number of delayed payments, strategic behaviour and
liquidity-delay tradeoff, under different payment system configurations.
- Default settings for Payment data to Proxied
data
Screenshots
(Click to enlarge)
Feel free to email me any questions/bugs/suggestions to aalent (non-Essex
users should add @essex.ac.uk to create full e-mail address)
Amadeo
Earlier Versions
Click
here
What's new in version 2.9:
- New strategy that gives the optimal time to
make each payment based on the minimization of total cost
- Faster creation of payments
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here
What's new in version 2.8:
- Two modes of liquidity posting: Just in Time
and Open Liquidity
- Two modes of queuing payments: First in First
out, or Order by size - New menu to
run the Experiments outlined in the BoE Working Paper
Click
here
What's new in version 2.6:
- option to read payments data file
- option to post opening liquidity
Click
here
What's new in version 2.5:
- new bilateral netting option, that nets
payments every hour
- new window under View>Queues to see the
hidden queues of the banks
- new graph to see the interbank net flow, under
View>Interbank balances
- fixed problems in post-failure experiments
- added number of failed payments in Excel file
- Statistics collector has options to select
which scenarios to run
- added a Play, Pause and Stop buttons in the
toolbar, so simulation can be paused
Click
here
What's new in version 2.4:
- new option to make all payments the same size,
equal to £1.9 million (= mean of the Chaps distribution)
- statistics collector runs 16 simulations, for
all combinations of Scenarios, Strategies and Bank sizes
- new button to print the liability matrix from
the program
- changes in the Excel file
- display Liquidity Controlled, Bilateral and
Multilateral netting for each individual bank
- added totals for each column
- printed the statistics on top of the spreadsheet
- fixed bugs
Click
here
What's new in version 2.3:
- new star graph under View menu
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here
What's new in version 2.2:
- you can now use any large number of payments,
without the Overflow problem
- new menu Tools with the Statistics Collector
- added 4 scenarios on how the received payments
are distributed to banks
- Statistics collector calculates the Multilateral
netting value
- use the median value, instead of the mean value,
for the strategy of agents
- new function under View to output Individual
Intraday liquidity for each bank, node risk, HI and net flow
- you can view the real-time the values for
HI, node risk and Net Flow inside the bank boxes
- during the simulation, you can click on a bank
to make it fail, and then see how the other banks fail
- banks use the Internal Reserve of 10% of total
payments once there has been a bank failure
Click
here
What's new in version 2.1:
- added a new strategy of delaying large
payments. Click on the menu "Settings">"Strategy
settings" to select this option
- can create banks of different sizes, from the
new menu "Settings">"Bank network settings"
- can have either (n-1)xn payments, or any
arbitrary number of payments, which gets distributed based on bank sizes
- new option to display number of payments in
brackets ( ) on the liability matrix
- the HI index for each bank is displayed in the
last column of the liability matrix
- new Bilateral Netting matrix under the View menu
- new Intraday graphs, showing Intraday liquidity,
intraday delayed payments and intraday time of payment execution
- you can click on the payments in the
intraday panel to see the payment details
- on the intraday panel, the delayed payments are
shown in red, and the on-time payments in black
- new option to keep liability matrix constant,
so we can compare what happens when using different strategies
- new cost equations for intraday costs of delays
and liqudity. I'm attaching a Word file with the details.
Click
here
What's new in version 2.0:
- we now have two models: the morning/period model
from Matthews, and an Intraday model, consisting of periods of 1 minute
- payment amounts can be all of £1 or different
amounts based on Chaps distribution (asymmetric payments)
- there is an option to enforce that the total of
each bank's liabilities to the rest of the system is the same as what it is
owed
- you can view the liability matrix
- have added an intraday emission of liabilities,
that you can view in simulated "real-time"
- payments can arrive at the bank either all in
the morning (Matthew's model) or throughout the day
Click
here
