myz-vgb.ru A Business Encyclopedia

Modified Distribution Method

Definition: The Modified Distribution Method or MODI is an efficient method of checking the optimality of the initial feasible solution.

The concept of MODI can be further comprehended through an illustration given below:

  1. Initial basic feasible solution is given below:MODI-1
  2. Now, calculate the values of ui and vj by using the equation:
    ui+vj = Cij
    Substituting the value of u1 as 0
    U1+V1 = C11, 0+V1 = 6 or V1 = 6
    U1 +V2 = C12, 0+V2 = 4 or V2 = 4
    U2+V2 = C22, U2+4 = 8 or U2 = 4
    U3+ V2 = C32, U3+4 = 4 or U3 = 0
    U3+V3 = C33, 0+V3 = 2 or V3 =2MODI-2
  3. Next step is to calculate the opportunity cost of the unoccupied cells (AF, BD, BF, CD) by using the following formula:
    Cij – (ui+Vi)

    AF = C13 – (U1+V3),  1- (0+2) = -1 or 1
    BD = C21 – (U2+v1),   3- (4+6) = -7 or 7
    BF = C23 – (U2+V3),   7- (4+2) = 1 or -1
    CD = C31- (U3+V1),    4- (0+6) = -2 or 2
  1. Choose the largest positive opportunity cost, which is 7 and draw a closed path, as shown in the matrix below. Start from the unoccupied cell and assign “+” or “–“sign alternatively. Therefore, The most favored cell is BD, assign as many units as possible.MODI-Final
  2. The matrix below shows the maximum allocation to the cell BD, and that number of units are added to the cell with a positive sign and subtracted from the cell with a negative sign.MODI-3
  3. Again, repeat the steps from 1 to 4 i.e. find out the opportunity costs for each unoccupied cell and assign the maximum possible units to the cell having the largest opportunity cost. This process will go on until the optimum solution is reached.

The Modified distribution method is an improvement over the stepping stone method since; it can be applied more efficiently when a large number of sources and destinations are involved, which becomes quite difficult or tedious in case of stepping stone method.

Modified distribution method reduces the number of steps involved in the evaluation of empty cells, thereby minimizes the complexity and gives a straightforward computational scheme through which the opportunity cost of each empty cell can be determined.

Leave a Reply

Your email address will not be published. Required fields are marked *

Shares

Related pages


define apprenticesdef delegateleveraged funds meaningintraprenershipmeaning of cash reserve ratiospot transaction exampleexplain the term whistleblowingfeature of monopolistic competitionoligopoly economics examplesguerilla war definitioncardinal utility definitionmeaning of moratoriumpsychoanalytic personality theorycost accounting marginal costingdefinition of taylorismvictor vroom expectancy theory of motivationslr stands for in bankingteleology exampledefine job enrichmentproduction function formulagrand strategy matrix exampleholistic approach meaning in hindilikert scale meaningneft minimum amountquantity demanded definitiondefine laissez-fairewhistle blowing conceptmanagerial grid meaningjohari meaningdefinition for rationingmulti stage cluster sampleequity linked savings schemes elssguerrilla attack marketingppf account maturityfour characteristics of oligopolymethods of settling industrial disputesformula operating profit marginemployer pfout source definitionbehavioral market segmentation definitiondef of innovationexamples of polycentric companieswhat is acid test ratio formulasanctuary meaning in urduwhat is porter five forces modelintrapreneur definitionindifference curve in hindisole proprietorship economics definitionfrank knight uncertaintywhat is 7cs of communicationmeaning of imitating in hindisampling and nonsampling errors in statisticscost inflation definitionmeaning of stringent in hindiquick acid test ratio formuladefine contingency theory of leadershipsnowball smaplingoral communication wikiwhat does autocrat meancapital budgeting proposalsbudget deficits definitionequity linked saving schemesweber bureaucracywho is henry fayolholistic marketingresonances definitioncompany pf contributionansoff marketnet asset turnover definitionproduct mix breadthhenri fayol 14 principles of management with examplesswitch meaning in hindiexplicity coste tailing business models