This paper presents a fully independent security study of a Diebold AccuVote-TS voting machine, including its hardware and software. We obtained the machine from a private party. Analysis of the machine, in light of real election procedures, shows that it is vulnerable to extremely serious attacks. For example, an attacker who gets physical access to a machine or its removable memory card for a...

To select a forecast model among competing models, researchers often use ex-ante prediction experiments over training samples. Following Diebold and Mariano (1995), forecasters routinely evaluate the relative performance of models with accuracy tests may base their selection on test significance top comparing errors. With extensive Monte Carlo analysis, we investigated whether this practice fav...

capital asset pricing model (capm) has been among the common models to estimate expected returns rate. since the linearity assumption is considered in the standard version of the capital asset pricing model, estimating beta in nonlinear setting will be inconsistent and bias-oriented. therefore, this study tries to evaluate predictive power of nonlinear capital asset pricing model as well as sta...

We bring the notion of connectedness (Diebold and Yilmaz, 2012) to a set two critical macroeconomic variables as inflation unemployment. focus on G7 economies plus Spain, use monthly data –high-frequency in macro setting– explore extent consequences total directional volatility spillovers across countries. find that is larger for prices (58.28%) than unemployment (41.81%). also identify asy...

The objective of our paper is to analyze the possibility to provide a forecast for the sign of the financial asset returns using the empirical prices of stocks listed at the Bucharest Stock Exchange. Previous research provided by Christoffersen and Diebold (2004) among others show that even if both the sign and the absolute value of returns are deterministic, their composure (the returns themse...

The Diebold-Mariano (DM) test was intended for comparing forecasts; it has been, and remains, useful in that regard. The DM test was not intended for comparing models. Unfortunately, however, much of the large subsequent literature uses DM -type tests for comparing models, in (pseudo-) out-of-sample environments. In that case, much simpler yet more compelling full-sample model comparison proced...

Emergency action in response to the COVID-19 pandemic led removal of financial and regulatory barriers developing medical technologies. But, as Andrea Armani Eric Diebold explain, a broader cultural shift academia can expedite their translation from laboratory benches real-world use.

Vitalyi Gusev, Walter Craig, Roberto LiVoti, Sorasak Danworaphong, and Gerald J. Diebold Université du Maine, av. Messiaen, 72085 LeMans, Cedex 09 France, Department of Mathematics McMaster University, Hamilton, Ontario, Canada L8S 4K1, Universita di Roma “La Sapienza”, Dipartimento di Energetica, Via Scarpa, 14 — 00161 Roma,Italy School of Science, Walailak University, 222 Thaiburi, Thasala Di...