トップPDF Anti bullying 最近の更新履歴 yyasuda's website

Anti bullying 最近の更新履歴  yyasuda's website

Anti bullying 最近の更新履歴 yyasuda's website

Ijime , which is the Japanese term closest in meaning to the word bullying, has been a pressing social issue in Japan for the last 30 years. 29 Although bullying is generally characterized by direct forms of aggression which often occurs in the playground (Craig et al. 2000), a major type of ijime is “characterized by more indirect forms of aggressions, often conducted by a group of pupils who were a victim’s classmates or even “friends” to the victim, mainly in the classroom” (Kanetsuna et al. 2006). Verbal forms (e.g., teasing, verbal threats) are more frequent than physical forms such as hitting and kicking (Morita et al. 1999). Hence, a major type of ijime causes mental rather than physical suffering to victims. Taki (2001) argues that personal factors (i.e., rearing conditions) do not meaningfully characterize bullies and victims in Japan. Thus ijime “can happen at any time, at any school and among any children” (p.2). His empirical data also suggests that from 1997 to 2000, over 30 percent of primary and junior high school students had bullied others and also experienced being bullied.
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Slide1 最近の更新履歴  yyasuda's website

Slide1 最近の更新履歴 yyasuda's website

Combination of dominant strategies is Nash equilibrium. There are many games where no dominant strategy exists[r]

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Lec2 最近の更新履歴  yyasuda's website

Lec2 最近の更新履歴 yyasuda's website

Prisoners’ Dilemma: Analysis     ( Silent , Silent ) looks mutually beneficial outcomes, though    Playing Confess is optimal regardless of other player’s choice!    Acting optimally ( Confess , Confess ) rends up realizing!!

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Lec9 最近の更新履歴  yyasuda's website

Lec9 最近の更新履歴 yyasuda's website

3(a - e)/4, is greater than aggregate quantity in the Nash equilib- rium of the Cournot game, 2(a - e)/3, so the market-clearing price is lower in the Stackelberg game.. Thus, i[r]

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Lec10 最近の更新履歴  yyasuda's website

Lec10 最近の更新履歴 yyasuda's website

   If the stage game has a unique NE, then for any T , the finitely repeated game has a unique SPNE: the NE of the stage game is played in every stage irrespective of the histor[r]

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Midterm2 最近の更新履歴  yyasuda's website

Midterm2 最近の更新履歴 yyasuda's website

(a) If an agent is risk averse, her risk premium is ALWAYS positive. (b) When every player has a (strictly) dominant strategy, the strategy profile that consists of each player’s dominant strategy MUST be a Nash equilibrium. (c) If there are two Nash equilibria in pure-strategy, they can ALWAYS be Pareto

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PS3 最近の更新履歴  yyasuda's website

PS3 最近の更新履歴 yyasuda's website

(c) Solve for the total saving S by all types who save and the total borrowing B.. by all types who borrow.[r]

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Final14 最近の更新履歴  yyasuda's website

Final14 最近の更新履歴 yyasuda's website

    5. Bayesian Nash Equilibrium (12 points)  There are three different bills, $5, $10, and $20. Two individuals randomly receive one  bill each. The (ex ante) probability of an individual receiving each bill is therefore 1/3.  Each  individual  knows  only  her  own  bill,  and  is  simultaneously  given  the  option  of  exchanging her bill for the other individual’s bill. The bills will be exchanged if and only  if  both  individuals  wish  to  do  so;  otherwise  no  exchange  occurs.  That  is,  each  individuals can choose either exchange (E) or not (N), and exchange occurs only when  both  choose  E.  We  assume  that  individuals’  objective  is  to  maximize  their  expected  monetary payoff ($). 
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Midterm14 最近の更新履歴  yyasuda's website

Midterm14 最近の更新履歴 yyasuda's website

Find (all) pure‐strategy Nash equilibrium if it exists.  iii.[r]

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Final1 最近の更新履歴  yyasuda's website

Final1 最近の更新履歴 yyasuda's website

e z . The prices of the three goods are given by (p, q, 1) and the consumer’s wealth is given by ω. (a) Formulate the utility maximization problem of this consumer. (b) Note that this consumer’s preference can be expressed in the form of U (x, y, z) = V (x, y) + z. Derive V (x, y).

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Slide2 最近の更新履歴  yyasuda's website

Slide2 最近の更新履歴 yyasuda's website

elimination of strictly dominated strategies can never be selected (with positive probability) in a mixed-strategy Nash equilibrium.[r]

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PS1 最近の更新履歴  yyasuda's website

PS1 最近の更新履歴 yyasuda's website

(a) The intersection of any pair of open sets is an open set. (b) The union of any (possibly infinite) collection of open sets is open. (c) The intersection of any (possibly infinite) collection of closed sets is closed. (You can use (b) and De Morgan’s Law without proofs.)

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PS2 最近の更新履歴  yyasuda's website

PS2 最近の更新履歴 yyasuda's website

Prove that if a firm exhibits increasing returns to scale then average cost must strictly decrease with output. 4.[r]

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Lec3 最近の更新履歴  yyasuda's website

Lec3 最近の更新履歴 yyasuda's website

payoff) while M gives 1 irrespective of player 1’s strategy.   Therefore, M is eliminated by mixing L and R .   After eliminating M , we can further eliminate D (step 2) and L (step 3), eventually picks up ( U , R ) as a unique outcome.

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EX3 最近の更新履歴  yyasuda's website

EX3 最近の更新履歴 yyasuda's website

Solve the following problems in Snyder and Nicholson (11th):. 1.[r]

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EX2 最近の更新履歴  yyasuda's website

EX2 最近の更新履歴 yyasuda's website

Solve the following problems in Snyder and Nicholson (11th):. 1.[r]

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EX1 最近の更新履歴  yyasuda's website

EX1 最近の更新履歴 yyasuda's website

Solve the following problems in Snyder and Nicholson (11th):. 1.[r]

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Lec8 最近の更新履歴  yyasuda's website

Lec8 最近の更新履歴 yyasuda's website

  A tree starts with the initial node and ends at2. terminal nodes where payoffs are specified..[r]

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Lec6 最近の更新履歴  yyasuda's website

Lec6 最近の更新履歴 yyasuda's website

  A strategy in dynamic games is a complete action plan which prescribes how the player will act in each possible.. contingencies in future..[r]

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Final13 最近の更新履歴  yyasuda's website

Final13 最近の更新履歴 yyasuda's website

  4. Incomplete Information (16 points, think carefully)  There are four different bills, $1, $5, $10, and $20. Two individuals randomly receive  one bill each. The (ex ante) probability of an individual receiving each bill is therefore  1/4.  An individual knows only her own bill, and  is  simultaneously given the option of  exchanging her bill for the other individual’s bill. The bills will be exchanged if and only  if  both  individuals  wish  to  do  so;  otherwise  no  exchange  occurs.  That  is,  each  individuals can choose either exchange (E) or not (N), and exchange occurs only when  both  choose  E.  We  assume  that  individuals’  objective  is  to  maximize  their  expected  monetary payoff ($). 
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