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TOURISMOS is an international, multi-disciplinary, refereed (peer ...

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<strong>TOURISMOS</strong>: AN INTERNATIONAL MULTIDISCIPLINARY JOURNAL OF TOURISM<br />

Volume 6, Number 1, Spring 2011, pp. 31-51<br />

UDC: 338.48+640(050)<br />

<strong>an</strong>d the log-likelihood function <strong>is</strong> as follows:<br />

where dij <strong>is</strong> the dummy variable of choosing (choosing policy<br />

alternative j: 1, choosing <strong>an</strong>y other: 0). Assuming that the error term εij<br />

are independently <strong>an</strong>d identically d<strong>is</strong>tributed with <strong>an</strong> extreme-value<br />

d<strong>is</strong>tribution, implies that the probability of <strong>an</strong>y particular policy<br />

alternative j being chosen as the most preferred c<strong>an</strong> be expressed in terms<br />

of the log<strong>is</strong>tic d<strong>is</strong>tribution (McFadden, 1974). Th<strong>is</strong> probability c<strong>an</strong> then<br />

be expressed as:<br />

Sigma <strong>is</strong> a scale factor for the extreme value d<strong>is</strong>tribution of the<br />

errors.<br />

The objective component of the utility c<strong>an</strong> be assumed, for example,<br />

to be:<br />

V (x, T)=∑ βp xp+ βTT (4)<br />

where xp <strong>is</strong> the attribute of the second home policy alternatives; βp<br />

<strong>an</strong>d βT are coefficients.<br />

The coefficients are estimated by the maximum-likelihood<br />

optimization model using Equations (2)–(4). Equation (4) <strong>is</strong> differentiated<br />

into Equation 5:<br />

(5)<br />

(3)<br />

43

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