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The purpose of this paper is to examine whether the use of humor in one-shot online negotiations affects the chance that the target of the humor will accept the offer. This study/paper proposes two competing hypotheses in this specific context: humor could be perceived as impertinent and thus decrease offer acceptance, or it could be perceived as friendly and thus increase offer acceptance.

To test these hypotheses, this study/paper conducted an experimental scenario study among 589 participants in a negotiation about selling a wardrobe on an online marketplace. Participants took the perspective of the seller, and this study/paper compared a condition in which the buyer used a joke versus a condition in which the buyer did not use a joke.

The use of humor by a buyer significantly increased the chance of offer acceptance by the seller. Without humor, 62% of sellers accepted the buyer’s offer. With humor, 82% of sellers accepted the offer. Further analysis suggests this is explained by the buyer being perceived as friendlier in the humor condition relative to the no humor condition. There were no effects on perceptions of buyer’s impertinence.

The findings indicate that humor is beneficial for buyers in a one-shot online negotiation. On the flipside, this implies that sellers should be cautious about being manipulated into accepting inferior deals by buyers who use humor in one-shot online negotiations.

The significant increase in the number of transactions on online marketplaces (such as AliExpress or eBay) justifies having a fresh look at the role of humor in one-shot online negotiations that are at the core of such transactions. Research in this domain is relatively scarce. In particular, there is no study that specifically tests whether humor is beneficial or detrimental in one-shot online negotiations. This study/paper extends the existing literature to the area of one-shot online interactions characterized by psychological distance.

Alcohol and cannabis are the two most commonly used substances by young people in many developed nations. The purpose of this paper is to explore the longitudinal relationships between risky substance use (binge drinking and cannabis use) and psychological distress, emotional and behavioural difficulties, and truancy among Australian adolescents.

A total of 527 students (Mage=13.4 years, SD=0.43; 67 per cent female) from seven Australian schools completed an online self-report survey on four occasions over two years (baseline, 6, 12 and 24 months). The survey assessed binge drinking (5+ standard drinks on one occasion), cannabis use in the past six months, psychological distress, emotional and behavioural difficulties (Strength and Difficulties Questionnaire), and truancy. Generalised estimating equations (GEEs) were conducted to examine the longitudinal relationship between the substance use outcomes and each predictor variable.

At baseline, 3 per cent of students reported binge drinking and 6 per cent had used cannabis in the past six months. Rates of binge drinking significantly increased over time (21.1 per cent at 24 months) however, rates of cannabis use remained relatively stable (8.8 per cent at 24 months). Multivariate GEE analyses indicated that higher levels of hyperactivity/inattention, more days of truancy and being female were independently and consistently associated with binge drinking over time. Conduct problems was the only factor to be independently associated with cannabis use over time.

These findings provide valuable information about psychosocial risk factors for harmful alcohol and cannabis use. A better understanding of these associations is critical for informing substance use prevention efforts in the future.

There are very few individuals who have studied the question of weights and measures who do not most strongly favour the decimal system. The disadvantages of the weights and measures at present in use in the United Kingdom are indeed manifold. At the very commencement of life the schoolboy is expected to commit to memory the conglomerate mass of facts and figures which he usually refers to as “Tables,” and in this way the greater part of twelve months is absorbed. And when he has so learned them, what is the result? Immediately he leaves school he forgets the whole of them, unless he happens to enter a business‐house in which some of them are still in use; and it ought to be plain that the case would be very different were all our weights and measures divided or multiplied decimally. Instead of wasting twelve months, the pupil would almost be taught to understand the decimal system in two or three lessons, and so simple is the explanation that he would never be likely to forget it. There is perhaps no more interesting, ingenious and useful example of the decimal system than that in use in France. There the standard of length is the metre, the standard of capacity the cubic decimetre or the litre, while one cubic centimetre of distilled water weighs exactly one gramme, the standard of weight. Thus the measures of length, capacity and weight are most closely and usefully related. In the present English system there is absolutely no relationship between these weights and measures. Frequently a weight or measure bearing the same name has a different value for different bodies. Take, for instance, the stone; for dead meat its value is 8 pounds, for live meat 14 pounds; and other instances will occur to anyone who happens to remember his “Tables.” How much simpler for the business man to reckon in multiples of ten for everything than in the present confusing jumble. Mental arithmetic in matters of buying and selling would become much easier, undoubtedly more accurate, and the possibility of petty fraud be far more remote, because even the most dense could rapidly calculate by using the decimal system.