INFERRING ANTICOMPETITIVE PRICE EFFECTS FROM DIFFERENCE-IN-DIFFERENCE ANALYSIS: A CAVEAT

A period 5 difference equation

The main goal of this note is to introduce another second-order differenceequation where every nontrivial solution is of minimal period 5, namelythe difference equation:xn+1 =1 + xn−1xnxn−1 − 1, n = 1, 2, 3, . . .with initial conditions x0 and x1 any real numbers such that x0x1 6= 1.

A Difference-In-Differences (DID) Analysis Of Financial Integration And International Trade In ASEAN+5

Making a Difference in Teacher Education Courses: A Psychological Reconsideration

A FUZZY DIFFERENCE BASED EDGE DETECTOR

In this paper, a new algorithm for edge detection based on fuzzyconcept is suggested. The proposed approach defines dynamic membershipfunctions for different groups of pixels in a 3 by 3 neighborhood of the centralpixel. Then, fuzzy distance and -cut theory are applied to detect the edgemap by following a simple heuristic thresholding rule to produce a thin edgeimage. A large number of experime...

Should “price Squeeze” Be a Recognized Form of Anticompetitive Conduct?

Should a “price squeeze” constitute anticompetitive conduct requiring investigation under the antitrust laws? A price squeeze occurs when a vertically integrated firm supplies an input to its downstream competitors at a price that generates a profit margin so low that the competitors exit the downstream market. I ask whether it is sensible to try to use antitrust laws to prevent such conduct or...