Correcting for On-Site Sampling in Random Utility Models

This study demonstrates how the joint distribution of a set of conditional trip counts to a system of recreation-sites can be adjusted for on-site sampling. An econometric approach is proposed that addresses both the size-biased distribution of the sampled visits and the weighted distribution of reported visits to ancillary destinations in a multivariate random utility framework. Estimation results indicate that uncorrected models produce biased estimates of trip counts and welfare measures. The empirical application examines jet skiing in the Lake Tahoe region.     

Travel behavior within Canada’s older population: a cohort analysis

The unprecedented demographic change of the aging Canadian society has raised numerous questions, including the provision of health care and the national pension plan to an increasingly large older population. Surprisingly, however, there is little Canadian literature regarding the travel behavior of its older population, an oversight that this paper addresses. Using the 1986, 1992, and 1998 General Social Surveys and pseudo-cohort methods, this paper addresses changing driving behavior among older Canadians, and compares the ‘old’ and ‘transitional old’ to younger-aged cohorts. Results indicate that while older Canadians undertake fewer trips, and travel for different reasons than those in the labor force, their reliance upon the private automobile for transportation is no less significant. Specifically, we demonstrate that the number of trips by car with older drivers increase over the study period as the population ages.     

Cross-Cultural Business Research: Introduction to the special issue

As markets become increasingly global, an understanding of the world's cultures is imperative. This special issue consists of nine articles devoted to increasing our understanding of culture. It follows the 11th Cross-Cultural Research Conference, which was held in Puerto Rico in December 2005. An open invitation to conference participants and other interested researchers resulted in 56 submissions for the special issue. Articles chosen were subjected to several rounds of double-blind reviews and revisions. They cover a variety of topics including vacationing, managerial competency appraisal, horizontal and vertical individualism and collectivism, consumer services, cultural conditioning, electronic word-of-mouth, the global hip-hop culture, ethical attitudes, and impulse buying behavior.     

Strategyproof sharing of submodular costs:budget balance versus efficiency

Summary. A service is produced for a set of agents. The service is binary, each agent either receives service or not, and the total cost of service is a submodular function of the set receiving service. We investigate strategyproof mechanisms that elicit individual willingness to pay, decide who is served, and then share the cost among them. If such a mechanism is budget balanced (covers cost exactly), it cannot be efficient (serve the surplus maximizing set of users) and vice-versa. We characterize the rich family of budget balanced and group strategyproof mechanisms and find that the mechanism associated with the Shapley value cost sharing formula is characterized by the property that its worst welfare loss is minimal. When we require efficiency rather than budget balance – the more common route in the literature – we find that there is a single Clarke-Groves mechanism that satisfies certain reasonable conditions: we call this the marginal cost pricing mechanism. We compare the size of the marginal cost pricing mechanism's worst budget surplus with the worst welfare loss of the Shapley value mechanism. Received: October 26, 1998; revised version: December 3, 1999     

Information Diffusion Effects in Individual Investors' Common Stock Purchases: Covet Thy Neighbors' Investment Choices

We study the relation between households' stock purchases andstock purchases made by their neighbors. A ten percentage pointincrease in neighbors' purchases of stocks from an industryis associated with a two percentage point increase in households'own purchases of stocks from that industry. The effect is considerablylarger for local stocks and among households in more socialstates. Controlling for area sociability, households' and neighbors'investment style preferences, and the industry composition oflocal firms, we attribute approximately one-quarter to one-halfof the correlation between households' stock purchases and stockpurchases made by their neighbors to word-of-mouth communication.     

The Importance of Account Relations when Responding to Interim Audit Testing Results*

Auditors are expected to plan and adapt audit programs in response to changes in risk associated with each client. Results in the existing research have been mixed regarding whether auditors respond to changes in risk. Two possible explanations for the lack of responsiveness to changes in risk found in the existing research are that auditors succumb to profit pressure, and that researchers only analyze responses in the risky accounts without considering related accounts. This paper experimentally tests how auditors respond to changes in risk of material misstatement identified by means of interim audit testing results. The response to changes in risk of material misstatement is analyzed using planned audit hours across related financial statement accounts and at varying levels of profit pressure. Results indicate the following primary findings: (a) auditors respond to changes in risk of material misstatement by increasing planned audit hours in accounts related to the risky account, and (b) profit pressure does not affect the auditor's response to changes in risk. These results indicate that the relations between accounts must be considered in order to identify the auditors' response to changes in risk of material misstatement. In addition, the results are consistent with audit firms decreasing the emphasis on profit pressure due to the current importance that the market places on audit quality.     

SUPPLY CHAIN COLLABORATION AND LOGISTICAL SERVICE PERFORMANCE

Collaboration with external supply chain entities influences increased internal collaboration, which in turn improves service performance. This relationship may be the key to helping managers understand how best to facilitate behavioral change. The implication is that collaborating with customers and suppliers is a first step toward effective collaboration within the firm.     

Volatility trade design

Despite the fact that they are heavily traded, discussed in every derivatives text, and necessary to aligning implied volatilities with volatility expectations, volatility trades such as straddles, strangles, and option/asset combinations have received scant attention in the finance research literature. Using a unique data set for the Eurodollar options market, the trading and structure of seven volatility trades—straddles, strangles, option/asset combinations, guts, butterflies, iron butterflies, and condors—are examined. We find that both traders' choices among the seven strategies and the designs they choose for the individual strategies indicate that volatility traders seek designs with (1) low deltas, (2) low transaction costs, and (3) high gammas and vegas. Among other things, these three presumed objectives explain why butterflies, guts, and condors are rarely traded; covered call and put writing is rare; and straddles are the most popular volatility trade. These objectives also explain the usual design of straddles, strangles, and asset/option combinations and the straddle–strangle choice. Our data also indicate that, in constructing their spreads, traders rely on heuristics that lead to relatively low deltas and high gammas and vegas, but not always the lowest delta and highest gamma/vega constructions implied by more sophisticated models. We find little evidence of trading based on the shape of the smile, that is, little evidence that trades are designed to long (short) strikes with low (high) implied volatilities. We find that some volatility trade structures—those that (1) receive considerable attention in finance textbooks, (2) have been posited by finance researchers, or (3) are recognized by the exchanges—are rarely employed by traders, whereas others are quite common. © 2005 Wiley Periodicals, Inc. Jrl Fut Mark 25:243–279, 2005