Research Article

A Mathematical Programming Approach to Supply Chain Network Design considering Shareholder Value Creation

Table 2

Notations.

Indices

Resources of production indexed by
Products indexed by
Locations of plant, indexed by
Locations of DC, indexed by
Locations of CZ, indexed by
Locations of WH, indexed by
Planning periods indexed by s and

Parameters
Plant market price during the time , with and
Warehouse market price during the time , with and
Distribution center market price at time period , with and
Cost for establishing a plant at location during the time period , with and
Cost for establishing a WH at location during the time , with and
Cost for establishing a DC at location at time period , with and
Cost for closing a plant at location during the time period , with and
Cost for closing a WH at location during the time , with and
Cost for closing a DC at location during the time , with and
Fixed production cost for product at plant at time period , with , , and
Unit production cost for product at plant at time period , with , , and
Fixed transportation cost of product from plant to WH at time period , with , , , and
Unit transportation cost of product from plant to WH at time period , with , , , and
Fixed transportation cost of product from WH to D.C at time period , with , , , and
Unit transportation cost of product from W.H to D.C at time period , with , , , and
Fixed transportation cost of product from DC to CZ at time period , with , , , and
Unit transportation cost of product from D.C to CZ at time period , with , , , and
Unit inventory cost of product at plant at time period , with and
Unit inventory cost of product at WH at time period , with and
Unit inventory cost of product at DC at time period , with and
Maximum capacity of DC , with
Minimum capacity of DC , with
Maximum inventory level of product being held at plant at the end of time period , with and
Demand of product from customer zone at time period , with , , and
Maximum production capacity of product at plant with end
Minimum production capacity of product at plant with end
Unit selling price of product at CZ at time period , with , , and
Maximum limit of products that can be transferred from plant to WH , with end
Maximum limit of products that can be transferred from WH to D.C , with end
Maximum limit of products that can be transferred from DC to C.Z , with end
Available quantity of resource at plant , with and
Maximum capacity of WH , with
Minimum capacity of WH , with
Safety stock of product at DC , during the time with , , and
Safety stock of product at WH , during the time with , and
Cash ratio lower bound during the time , with
Current ratio lower bound during the time , with
Cash coverage ratio lower bound during the time , with
Assets turnover ratio lower bound during the time , with
New capital entries upper bound during the time period , with
Long-term debt ratio upper bound during the time period , with
Total debt ratio upper bound during the time , with
Return on equity ratio lower bound during the time period , with
Profit margin ratio lower bound during the time period , with
Return on assets ratio lower bound during the time period , with
Lower bound for quick ratio during the time period , with
Accumulated depreciation rate of a facility opened at time period and closed during the time , with and
Long-term interest rate during the time period , with
Tax rate at the time period , with
Rate of capital cost during the time , with
Depreciation rate of a facility at the end of time period , with and
Coefficient relating resource utilization rate of to produce product in plant , with , , and
Coefficient relating loans during the time , with
Coefficient relating payables outstanding at time period , with
Coefficient relating revenues outstanding at time period , with

Decisions and auxiliary variables
Inventory level of product being held at plant at time period , with , and
Inventory level of product being held at WH at time period , with and
Inventory level of product being held at DC at time period , with and
Product quantity produced at plant at time period , with , , and
Product quantity transferred from plant to WH in time period , with , , , and
Product quantity transferred from WH to DC in time period , with , , , and
Quantity of product transferred from DC to C.Z during time period , with and
and and
with and and
with and and
with and and
with and and
New capital entries from shareholders during the time period , with
Repaid amount to the bank during the time period , with
Current assets during the time period , with
Bank debts during the time period , with
Depreciation value at time period , with
Cost of sales at time period , with
Cash during the time period , with
Investment of fixed assets during the time period , with
Divestment of fixed assets during the time period , with
Interest paid(interest expense) during the time period , with
Cost of holding inventory during the time period , with
Long-term debt during the time period , with
Inventory value at time period , with
Nonoperating income during the time period , with
Production cost during the time period , with
Net fixed assets during the time period , with
Revenues from sales during the time period , with
Transportation cost during the time period , with