This article sheds light on the question of whether it is possible to create fairly accurate forecasts real oil prices. For this purpose, a multi-level machine learning model has been created analyze several sources heterogeneous data predict future The uses different types data: market condition data, titles, and transaction data. Then, they have processed be able load them into model. validat...

Five recombinant Toxoplasma gondii antigens, designated B427, C51, C55, V22, and MBP30 were assessed for their potential use in an enzyme-linked immunoassay (EIA) for detection of T. gondii infection in swine. The antigens were evaluated with sera from young pigs that had been fed 1-10,000 T. gondii oocysts of the VEG or GT-1 strains. Results were compared with an EIA using a native T. gondii a...

Molecular structures of 4-(((4-methoxyphenyl)amino)methyl)-N,N-dimethylaniline and 2-methoxy-5-((phenylamino)methyl)phenol synthesized via Schiff bases reduction route are reported. The compounds consist asymmetric units C16H20N2O (1) C14H15NO2 (2) in orthorhombic monoclinic crystal systems, respectively. Compound 1 intermolecular C11—H11···N2 hydrogen bonding with C11···N21 = 3.463(4) Å. hydro...

Disputes about econometric methodology partly reflect a lack of evidence on alternative approaches. We reconsider econometric model selection from a computer-automation perspective, focusing on general-to-specific reductions, embodied in PcGets. Starting from a general congruent model, standard testing procedures eliminate statistically-insignificant variables, with diagnostic tests checking th...

Regulatory reform in the Nordic electricity-supply markets has resulted in a single integrated Nordic electricity market. This paper performs an econometric study of market power in the spot market of Nord Pool, the joint Nordic power exchange. I use a dynamic extension of the Bresnahan-Lau model, and weekly data for the period from 1996 through April 1999. To my knowledge, this is the first st...

In this paper, we discuss the derivation and application of a bivariate ordered probit model with mixed effects. Our approach allows one to estimate the distribution of the effect (gamma) of an endogenous ordered variable on an ordered explanatory variable. By allowing gamma to vary over the population, our estimator offers a more flexible parametric setting to recover the causal effect of an e...

This paper examines the hypothesis that both stock returns and volatility are asymmetrical functions of past information from the US market. By employing a double-threshold GARCH model to investigate six major index-return series, we find strong evidence supporting the asymmetrical hypothesis of stock returns. Specifically, negative news from the US market will cause a larger decline in a natio...

We develop and test a model of initial play for symmetric normal-form games with multiple Nash equilibria. First, we specify an encompassing model that incorporates both equilibrium selection principles and boundedly rational behavioral models. We then design experimental games that can identify a variety of equilibrium selection principles. Model comparisons and hypothesis tests indicate that:...

When attempting to measure gun ownership in the United States, the problem of missing administrative data arises, making it necessary to find a valid proxy. Several such proxies are employed in economic studies, one of which is the fraction of “suicides by firearm” of “all suicides” (FSS). My work validates this proxy from out-of-sample data, namely, Austrian administrative data on firearm lice...

This paper develops tests for comparing the accuracy of predictive densities derived from (possibly misspecified) diffusion models. In particular, we first outline a simple simulation-based framework for constructing predictive densities for one-factor and stochastic volatility models. Then, we construct accuracy assessment tests that are in the spirit of Diebold and Mariano (1995) and White (2...