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[taler-docs] branch master updated: Some minor edits to Design doc 012:


From: gnunet
Subject: [taler-docs] branch master updated: Some minor edits to Design doc 012: Fee schedule and metrics
Date: Sat, 16 Jan 2021 18:59:36 +0100

This is an automated email from the git hooks/post-receive script.

skuegel pushed a commit to branch master
in repository docs.

The following commit(s) were added to refs/heads/master by this push:
     new 32bf483  Some minor edits to Design doc 012: Fee schedule and metrics
32bf483 is described below

commit 32bf4830718b13067489b430030740bbed135a62
Author: Stefan K├╝gel <skuegel@web.de>
AuthorDate: Sat Jan 16 18:58:55 2021 +0100

    Some minor edits to Design doc 012: Fee schedule and metrics
---
 design-documents/012-fee-schedule-metrics.rst | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/design-documents/012-fee-schedule-metrics.rst 
b/design-documents/012-fee-schedule-metrics.rst
index f7a6f4e..01689de 100644
--- a/design-documents/012-fee-schedule-metrics.rst
+++ b/design-documents/012-fee-schedule-metrics.rst
@@ -122,9 +122,9 @@ If an Exchange operator charges relatively high deposit 
fees, sellers must have
 Deposit fees will also affect refund transactions, for example when a rebate 
is given by the seller to the customer. Only in the case of a complete 
withdrawal from the contract by the seller does the refund transaction exempt 
the buyer from the deposit fee. In that case, the refund transaction incurs the 
'Refresh' fee, borne entirely by the buyers. If the seller's refund is partial, 
only the seller's deposit fee is waived, which means from the buyer's 
perspective a partially refunded pur [...]
 
 Generally, sellers want to ensure that:
-(1) the exchange selected by the buyers complies with the regulatory 
requirements of the supervisory authorities (e.g. BaFin) and with anti-money 
laundering laws (AML); 
-(2) if paying is in EUR, the exchange operates in the SEPA currency area; and 
-(3) the fees of the selected exchange are within the limits of what the seller 
sets using its maximum deposit fee values (and wire fee maximum values as 
described below). 
+1. the exchange selected by the buyers complies with the regulatory 
requirements of the supervisory authorities (e.g. BaFin) and with anti-money 
laundering laws (AML); 
+2. if paying is in EUR, the exchange operates in the SEPA currency area; and 
+3. the fees of the selected exchange are within the limits of what the seller 
sets using its maximum deposit fee values (and wire fee maximum values as 
described below). 
 
 * **Refresh** from the buyer's point of view:
 
@@ -168,7 +168,7 @@ The closing charge is triggered by users of the payment 
system if, after a succe
 
 * **Closing** from the Exchange operator's point of view:
 
-Costs for the closing of a reserve are incurred by the Exchange operator due 
to irregular user behavior. However, Exchange operators may charge a fee for 
covering these costs to the user who caused them. The closing fee is 
indispensable for Exchange operators in order to prevent abuse through cost 
driving by malicious parties. Charging the fee by retaining it always works 
smoothly because the Exchange's escrow account is already in possession of 
users' funds through their wire transfers.
+Costs for the closing of a reserve are incurred by the Exchange operator due 
to irregular user behavior (withdrawing to the wallet failed within the given 
time frame, the Exchange has to wire the funds back to the originating 
account). However, Exchange operators may charge a fee for covering these costs 
to the user who caused them. The closing fee is indispensable for Exchange 
operators in order to prevent abuse through cost driving by malicious parties. 
Charging the fee by retaining it [...]
 
 * **Closing** from the seller's point of view:
 
@@ -179,7 +179,9 @@ Fee levels in case of misuse
 
 Normally, the payment process involves the fee types **Withdrawal**, 
**Deposit** and **Wire fee** - given the case the amount to be paid is settled 
with a coin of the exactly matching denomination. For any other amount for 
which a coin of higher denomination is used, the refresh transaction will 
generate change, i.e. post one or more fresh coins to the wallet until the 
difference is reached.
 
-However, refresh transactions can be triggered anonymously an unlimited number 
of times by malicious parties, thus harming Exchange operators. Exchange 
operators must therefore be able to take action in the event of misuse with the 
help of different fees:
+However, refresh transactions can be triggered anonymously an unlimited number 
of times by malicious parties, thus harming Exchange operators, and the fee 
type **Refresh** has to be chosen as treatment.
+
+Exchange operators must in some cases be able to take action by using 
different fees:
 
 * Abuse due to ``withdrawal transactions`` is unlikely as the costs of wire 
transfers are borne by the bank account holders and not the Exchange operators 
or sellers.
 
@@ -193,7 +195,7 @@ However, refresh transactions can be triggered anonymously 
an unlimited number o
 
 * Abuse due to ``wire transfers`` will only be a burden for an Exchange 
operator when sellers increase the frequency of aggregated wire transfers from 
the exchange to their banking accounts. This is the case for extremely often 
triggered wire transfers after customers' deposit transactions in order to 
receive sales revenues immediately. A good reason to do this may be the 
seller's need for liquidity. Some merchants might also gain profit from 
interest rates, if they receive revues long t [...]
 
-* Abuse due to ``closing transactions`` and the involved remittances 
(withdrawing to the wallet failed within the given time frame, Exchange has to 
wire the value to the originating account) burdens the Exchange operator with 
costs for wire transfers; to prevent this, the Exchange operator can introduce 
a fee by adjusting the **closing** variable.
+* Abuse due to ``closing transactions`` and the accompanying wire transfer of 
remittances back to the originating accounts burdens the Exchange operator with 
costs for wire transfers; to prevent this, the Exchange operator can introduce 
or increase the fee type **Closing**.
 
 Alternatives
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